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N7749C 光电器件分析仪 详细指标
Optical Power Meter Heads
条件：All optical power heads have to be operated with the two or four channel optical head interface N7749C.
Uncertainty at reference conditions 1 ± 2.2%
1. Reference conditions:
On day of calibration (add ± 0.3% for aging over one year; add ± 0.6% for aging over two years).
Wavele ngth setting of power sensor corresponds to source wavelength ≤ ± 0.4 nm.
2. Operating conditions:
Give additional information for using the instrument. These are general descriptive terms that do not
imply a level of performance.
81620C Optical Power Head Specifications
81620C
Wavelength range
450 nm to 1020 nm
Specification wavelength range
600 nm to 1020 nm (if not stated differently)
Power range
–90 dBm to +10 dBm
Maximum safe input power (CW and peak)
+16 dBm
Averaging time (minimal)
100 µs
Applicable fiber type Standard SM and MM max. 100 μm core diameter, NA ≤
0.3
Open beam Parallel beam max. Ø
4 mm
Total uncertainty 2 ± 4.0%
± 0.5 pW
at operating temp. range (CW
–70 dBm to +10 dBm)
Noise (peak to peak) 4 <
0.5 pW (700 nm to 900 nm)
Power level 10 μW (
–20 dBm), continuous wave (CW).
Parallel b eam 3 mm spot diameter on the center of the detector.
Ambient temperature (23
± 5 ) °C .
Spectral width of source <
10 nm full width half maximum (FWHM).
Parallel beam, 3 m m spot diameter on the center of the detector or connectorized fiber with NA ≤
0.2 (straight
条件：Waveleng th setting of power sensor corresponds to source wavelength ≤ ± 0.4 nm.
3. Does not include noise; for wavelength < 1000 nm appli es for -50 dBm to +10 dBm.
4. Averaging time 1 s, T = (23 ± 5) °C , ΔT ± 1 K, observation time 300 s.
5. For input power > 2 mW add ±0.00 4 dB/mW; zeroing required.
All optical power heads have to be operated with the two or four channel optical head interface N7749C.
Uncertainty at ref. conditions 1
Uncertainty at ref. conditions 1
1. Reference conditions:
On day of calibration (add ± 0.3% for aging over one year; add ± 0.6% for aging over two years).
Wavelengt h setting of power sensor corresponds to source wavelength ≤ ± 0.4 nm.
2. Operating conditions:
connector ; for 81623X01C and 81623X81C also with angl ed connector ≤ 8° ).
Wavelength setting of power sensor corresponds to source wavelength ≤ ± 0.4 nm.
3. All states of polarization at constant wavelength (1550 nm ± 30 nm) and c onstant power, straight connector,
4. Conditions:
Wavelength 1550 nm ± 30 nm, fixed state of polarization, constant power.
5. Does not include noise; zeroing required; for wavelength < 1000 nm applies for -50 dBm to +10 dBm.
6. Averaging time 1 s, T = (23 ± 5) °C , ΔT ± 1 K, observation time 300 s.
7. Conditions:
Wavelength 1550 nm ± 30 nm (1310 nm ± 30 nm for 81623X80C and 81623X81C).
Within one year after calibration; add
0.3% for second year.
Spectral width of source <
10 nm (FWHM).
81623C Optical Power Head Specifications
81623C, 81623X80C 81623X01C
81623X81C
Wavelength range
750 nm to 1800 nm
Power range
–80 dBm to +10 dBm
Maximum safe input power (CW and peak)
+16 dBm
Averaging time (minimal)
100 µs
Applicable fiber type Standard SM and MM max 100 μm core diameter, NA ≤
0.3
Open beam Parallel beam max. Ø
4 mm
Relative uncertainty due to polarization 3 < ± 0.010 dB; typical <
±0.005 dB
Relative uncertainty due to spectral ripple (due to interference)
4
< ± 0.006 dB; typical <
±0.003 dB
at operating temp. range (CW
–60 dBm to +10 dBm)
< ±0.025 dB
< ±0.05 dB
Linearity at fixed power range 5, 9 Typical < ±0.01 dB, within
10 dB of range maximum
Noise (peak to peak) 6 <
100 pW (1200 nm to 1630 nm)
< 400 pW (800 nm to 1200 nm)
1000 nm to 1650 nm ± 2.2%
± 1.7%
1000 nm to 1650 nm ± 3.5% ± 100 pW ± 3.0%
± 100 pW
Typical > 55 dB 8 >
56 dB
81623C, 81623X01C 81623X80C
81623X81C
800 nm to 1000 nm Typical ± 3.0%
± 2.5%
800 nm to 1000 nm Typical ± 4.0% ± 250 pW ± 3.7%
± 250 pW
Power level 10 μW (
–20 dBm), continuous wave (CW).
Parallel beam 3 mm spot diameter on the center of the detector.
Ambient temperature (23
± 5 ) °C .
Spectral width of source <
10 nm full width half maximum (FWHM).
Parallel beam, 3 mm spot diameter on the center of the detector or connectorized fiber with NA
≤0.2 (straight
Within one year after calibration; add
0.3% for second year.
Spectral width of source <
10 nm (FWHM).
T = (23 ± 5) °C . For angled connector (8°) add
± 0.01 dB typ.
Linewidth of source ≥
100 MHz.
条件：8. With D -shape adapter 81001xx return loss > 60 dB typical.
9. For input power > 2 mW add ± 0.004 dB/mW . (not for 81623X 01 C and 81623X81C );.
For input powe r < –40 dBm add as dB: ± 10 log (1 + 50 pW / Power in pW) .
All optical power heads have to be operated with the two or four channel optical head interface N7749C.
Uncertainty at reference conditions 1 ± 2.2% ± 1.5% (970 nm to 1630 nm)
1. Reference conditions:
On day of calibration (add ± 0.3% for aging over one year; add ± 0.6% for aging over two years).
Wavelength setting of power sensor corresponds to source wavelength ≤ ± 0.4 nm.
2. Operating conditions:
connector ); 81624X01 C and 81624X05C also with angled connector ≤ 8° ).
81624C Optical Power Head Specifications
81624C 81624X01C
81624X05C
Sensor element InGaAs, Ø
5 mm
Wavelength range
800 nm to 1700 nm
Specification wavelength range
1000 nm to 1630 nm (if not stated differently)
Power range
–90 dBm to +10 dBm
Maximum safe input power (CW and peak)
+16 dBm
Averaging time (minimal)
100 µs
Applicable fiber type Standard SM and MM max 100 μm core diameter, NA ≤
0.3
Open beam Parallel beam max. Ø
4 mm
Total uncertainty 2 ± 3.5% ± 5 pW ± 2.8%
± 5 pW
(970 nm to 1630 nm)
Relative uncertainty due to polarization 3 < ± 0.005 dB; typical <
± 0.002 dB
Relative uncertainty due to spectral ripple (due to interference)
4
< ± 0.005 dB; typical <
± 0.002 dB
at operating temp. range (CW, –70 dBm to +10 dBm
1000 nm to 1630 nm)
Linearity at fixed power range 5, 8 Typical < ± 0.01 dB, within
10 dB of range maximum
Return loss 7 Typical >
60 dB
Noise (peak to peak) 6 <
4.5 pW
Power level 10 μW (
–20 dBm), continuous wave (CW).
Parallel beam 3 mm spot diameter on the center of the detector.
Ambient temperature (23
± 5 ) °C .
Spectral width of source <
10 nm full width half maximum (FWHM).
Parallel beam, 3 mm spot diameter on the center of the detector or connector ized fiber with NA ≤
0.2 (straight
Within one year after calibration; add
0.3% for second year .
条件：Wavelength setting of power sen sor corresponds to source wavelength ≤ ± 0.4 nm.
3. All states of polarization at constant wavelength (1550 nm ± 30 nm) and constant power, straight connector,
4. Conditions:
Wavelength 1550 nm ± 30 nm, fixed state of polarization, constant power.
5. Does not include noise; zeroing required.
6. Averaging time 1 s, T = (23 ± 5) °C , ΔT ± 1 K, observation time 300 s, wavelength range 1 200 nm to 1630 nm.
7. Conditions:
T = (23 ± 5) °C . For angled connector (8°) add
± 0.01 dB typ.
Linewidth of source
≥100 MHz.
Wavelength 1550 nm
± 30 nm.
条件：8. For input power < –50 dBm add as dB: ± 10 log (1 + 2.3 pW / Power in pW) .
All optical power heads have to be operated with the two or four channel optical head interface N7749C.
With D -shape adapter 81001x A return loss >
60 dB typica l.
81626C Optical Power Head Specifications
Sensor element InGaAs, Ø
5 mm
Wavelength range
850 nm to 1650 nm
Specification wavelength range
850 nm to 1650 nm (if not stated differently)
Power range
–70 dBm to +27 dBm (1250 nm to 1650 nm)
–70 dBm to +23 dBm
条件：Uncertainty at ref. conditions 1 ± 3.0% (950 nm to 1630 nm) ± 2.5% (950 nm to 1630 nm)
1. Reference conditions:
On day of calibration (add ± 0.3% for aging over one year; add ± 0.6% for aging over two years).
Wavelength setting of power sensor corresponds to source wavelength ≤ ± 0.4 nm.
2. Operating conditions:
+27.5 dBm (1250 nm to 1650 nm)
+23.5 dBm
Averaging time (minimal)
100 µs
Applicable fiber type Standard SM and MM max 100 μm core diameter, 0.1 ≤ NA ≤
0.3
Open beam Parallel beam min. Ø 1 mm, max. Ø
4 mm
950 nm to 1250 nm
1250 nm to 1630 nm
±4.5% ± 500 pW (≤
+23 dBm)
±4.5% ± 500 pW (≤
+27 dBm)
Relative uncertainty due to polarization 3 < ± 0.005 dB; typical <
± 0.002 dB
Relative uncertainty due to spectral ripple (due to interference)
4
< ± 0.005 dB; typical <
± 0.002 dB
at operating temp. range (CW, –50 dBm to +27 dBm
950 nm to 1630 nm)
Linearity at fixed power range 5, 8 Typical < ± 0.02 dB, within
10 dB of range maximum
Return loss 7 > 45 dB >
47 dB
Noise (peak to peak) 6 <
500 pW
Power level 10 μW (
–20 dBm), continuous wave (CW).
Parallel beam 3 mm spot diameter on the center of the detector.
Ambient temperature (23
± 5 ) °C .
Spectral width of source <
10 nm full width half maximum (FWHM).
Parallel beam, 3 mm spot diameter on the center of the detector or connector ized fiber with NA ≤
0.2 (straight
connector ); 81626X01 C also with angled connector ≤
8° ).
Within one year after calibration; add
0.3% for second year.
条件：Wavelength setting of power sensor correspond s to source wavelength ≤ ± 0.4 nm.
3. All states of polarization at constant wavelength (1550 nm ± 30 nm) and constant power, straight connector,
4. Conditions:
Wavelength 1550 nm ± 30 nm, fixed stat e of polarization, constant power.
5. Does not include noise; zeroing required.
6. Averaging time 1 s, T = (23 ± 5) °C , ΔT ±1 K, observation time 300 s, wavelength range 1200 nm to 1630 nm.
7. Conditions:
T = (23 ± 5) °C . For angled connector (8°) add
± 0.01 dB typ.
Linewidth of source
≥100 MHz.
Wavelength 1550 nm
± 30 nm.
条件：8. For input power >10 mW add typ. ± 0.0016 dB/mW. In case of decreasing power, allow time for stab ilization of the
For input power < –30 dBm add as dB: ± 10 log (1 + 250 pW / Power in pW) .
All optical power heads have to be operated with the two or four channel optical head interface N7749C.
reading (about 5 s per dB change). In case of decreasing power by more than
50 dB, allow recovery time
of 3 minutes.
Operating Notes (81626C
81626X01C)
Maintain the optical window free of contamination and deposition and observe the minimum beam
diameter and minimum NA requirements to avoid melting-in residues!
81628C Optical Power Head Specifications
81628C
Wavelength range
800 nm to 1700 nm
Specification wavelength range
970 nm to 1630 nm (if not stated differently)
Power range
–60 dBm to +40 dBm (800 nm to 1700 nm)
For operation at higher than
+34 dBm see safety note!
条件：Uncertainty at ref. conditions 1, 7 ± 3.0%
1. Reference conditions:
On day of calibration (add ± 0.3% for aging over one year; add ± 0.6% for aging over two years).
Wavelength setting of power sensor corresponds to source wavelength ≤ ± 0.4 nm.
2. Operating conditions:
+40.5 dBm
For operation at higher than
+34 dBm see safety note!
Averaging time (minimal)
100 µs
Applicable fiber type Standard SM, NA ≤
0.2
Open beam Ø ≤
3 mm on the center of the sphere input
≤ +10 dBm
± 4.5%, typ. ± 3.5% for amb. temp. (23 ± 5) °C and humidity 50%
± 10%
± 5.0%
Relative uncertainty due to polarization 3 Typical <
± 0.006 dB
Relative uncertainty due to speckle noise
4
Typical <
± 0.02 dB (0.1 pm to 100 pm source linewidth)
Typical < ± 0.002 dB (>
100 pm source linewidth)
≤ –20 dBm
CW, –40 dBm to +38 dBm, at (23
± 5) °C
< ± 0.03 dB, add as dB: ± 10 log (1 +
2.5 nW / Power in nW)
Linearity at fixed power range 5, 7, 8 Typical < ± 0.01 dB, within
10 dB of range maximum
Return loss Nominal >
75 dB
Noise (peak to peak) 6 <
5 nW
Power level 10 μW (
–20 dBm), continuous wave (CW).
Parallel beam 3 mm spot diameter on the center of the sphere input .
Ambient temperature (23
± 5 ) °C .
Spectr al width of source <
10 nm full width half maximum (FWHM).
Parallel beam, 3 mm spot diameter on the center of the sphere input or conn ectorized fiber with NA ≤
0.2 (straight
Within one year after calibration; add
0.3% for second year.
条件：Wavelength setting of power sensor corresponds to source wavelength ≤ ± 0.4 nm.
3. All states of polarization at constant wavelength (1550 nm ± 30 nm) and constant power.
T = (23 ± 5 ) °C . Straight connector. For angled connector add typical ± 0.01 dB.
4. Conditions:
Wavelength 1550 nm ± 30 nm, fixed state of polarization, constant power.
5. Does not include noise; zeroing required.
6. Averaging time 1 s, T = (23 ± 5) °C , ΔT ± 1 K, observation time 300 s.
Thermal drift at +38 dBm, exposure time 30 min: Recovery time 10 min: ≤30 nW, 30 min: ≤10 nW.
7. Wavelength not within 1340 nm to 1490 nm. Source spectrum must not overlap with any water absorption line.
8. For operating temperature range add ± 0.03 dB.
Tempe rature (23
± 5) °C .
Operating and Safety Notes (81628C)
When not in use, cover the aperture of the integrating sphere to avoid contamination or moisture to get
条件：get warmer than permitted according to the safety standard IEC 61010-1.
For optical power higher than
+34 dBm the attached heat sink MUST be used!
For continuous optical power or average optical power higher than
+38 dBm the connector adapters will
The
81628C Optical Head can handle optical power up to +40 dBm, however, operation above
+38 dBm is at the operators own risk.
Keysight Technologies Deutschland GmbH will not be liable for any damages caused by an operation
Optical 功率 Head 典型值 Analog 带宽
Power Range 81620C 81623C
81623X01C
81624X05C, 81626C, 81626X01C
81628C
+40 dBm n/a n/a n/a
3.5 kHz
+30 dBm n/a n/a n/a
3.5 kHz
+20 dBm n/a n/a n/a
3.5 kHz
+10 dBm 5.0 kHz 5.0 kHz 5.0 kHz
3.5 kHz
0 dBm 5.0 kHz 5.0 kHz 5.0 kHz
1.8 kHz
–10 dBm 5.0 kHz 5.0 kHz 5.0 kHz
1.8 kHz
–20 dBm 5.0 kHz 5.0 kHz 5.0 kHz
0.12 kHz
–30 dBm 0.5 kHz 0.5 kHz 1.8 kHz
0.12 kHz
–40 dBm 0.5 kHz 0.5 kHz
1.8 kHz n/a
–50 dBm 0.05 kHz 0.05 kHz
0.12 kHz n/a
–60 dBm 0.05 kHz 0.05 kHz
0.12 kHz n/a
81624X05C
Operating temperature
0 °C to +40 °C
0 °C to +35 °C;
0 °C to +40 °C;
Operating humidity ≤
80%, non-condensing
Storage temperature
–40 °C to +70 °C
Recommended recalibration period
2 years
Dimensions 57 mm × 66 mm ×
156 mm
N7749C Optical Head Interface
Line power AC 100 V to 240 V
± 10%
Operating temperature
+5 °C to +40 °C
Operating humidity ≤
80%, non-condensing
Storage temperature
–40 °C to +70 °C
Dimensions 420 mm × 212 mm ×
43 mm
(excluding 前面板和 back rubber cushions 和连接器)
User Interface N7749C Optical Head Interface
LAN Access (1 Gbit/s):
VXI-11
IPv4 and Ipv6 Socket connection:
USB Access (USB
2.0) Remote NDIS (virtual Ethernet link over USB)
条件：spatial homogeneity, uncertainty 1.7 pct at ref. conditions
resp., linearity, spatial homogeneity, uncertainty. 1.7 pct at ref. cond.
linearity, spatial homogeneity, uncertainty 1.5 pct at ref. conditions
spectral resp., linearity, spatial homogeneity, uncertainty 1.5 pct at ref. cond.
responsivity, linearity, spatial homogeneity, uncertainty 2.5 pct at ref. conditions
1. One 81624DD is included with every optical head ex cept 81628C as its integrating sphere has a threaded fixture.
N7799C-1CM Rack Mount Kit for 2 half-width instruments, 1 Rack Height Unit, including low profile rails.
please contact your local Keysight office. The complete list is available at:
81620C-STD Si Optical Head
5 mm diameter
81623C-STD Ge Optical Head
5 mm diameter
81623X01C Ge Optical Head 5 mm diameter, with special calibration for spectral responsivity, linearity
81623X80C Ge Optical Head
5 mm diameter, with special calibration at 850 nm
81623X81C Ge Optical Head 5 mm diameter, with special cal. at 850 nm and special cal. for spectral
81624C-STD InGaAs Optical Head
5 mm diameter
81624X01C InGaAs Optical Head
5 mm diameter, with special calibration for spectral responsivity
81624X05C InGaAs Optical Head 5 mm diameter, calibrated by PTB, with special calibration for
81626C-STD High-Power InGaAs Optical Head
+27 dBm
81626X01C High-Power InGaAs Optical Head
+27 dBm, with special calibration for spectral
81628C-STD High-Power InGaAs Optical Head
+38 dBm
N7749C-200 Optical Power Meter Head Interface
2 channels
N7749C-400 Optical Power Meter Head Interface
4 channels
Product Connector Adapters (required) 8100xyA One optical head adapter is required per head to connect optical fibers. Please refer to the
Lightwave Solution Platform Configuration Guide, page
15 for details.
81000BC Bare fiber connectivity set for 81620x/23x/24x/26x optical heads. Please refer to the
Lightwave Solution Platform Configuration Guide, page
15 for details.
81000BT Bare fiber connectivity set for 81628x optical heads. Please refer to the Lightwave Solution
Platform Configuration Guide, page
15 for details.
81624DD Adapter (D-shape) for optical heads (except
81628C), works with 81000xA and 81003xA
Product/Option Recommended Accessories 81624CE Extension cable for optical heads (4 m)
81625RM Rack mount kit for 4 optical heads
Requires Filler Kit N7799C-0CM for mounting single instrument
N7799C-0CM Filler Kit for N7799C-1CM.
Required for single half-width instrument; includes front panel and base plate
N7799C-DOC Documentation of N77-C Platform, Physical Medium
This information is subject to change without notice. © Keysight Technologies, 20 21, Published in USA, Dec ember 16, 20 21, 3121
-1226. EN
For more information on Keysight Technologies’ products, applications, or services,
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