Agilent
81663A DFB Laser
8165xA Fabry-Perot Lasers
Data Sheet
Introduction
The Agilent 81663A high power
DFB Laser Source modules are
best suited for optical amplifier
test and DWDM system test
applications.
The Agilent Fabry-Perot Laser
Sources are available as single
or dual wavelength sources, are
insensitive to back reflections,
and are stabilized for short and
long term applications.
The DFB and FP Laser Source
modules are part of the flex-
ible Agilent Lightwave Solution
platform and have a future-
proof design that allows for
easy firmware upgrades.
Technical Specifications
Fabry-Perot source module specifications
(standard modules, 0 dBm)
Specifications apply to the end of a 2-m long fiber cable (as specified under fiber
type) with Diamond® HMS-10/Agilent connectors attached. All specifications
are valid for an attenuation setting of 0.0 dB. All modules require straight output
connectors.
Agilent
81650A
Type
Center wavelength
Fiber type
Spectral bandwidth
(rms)
1, 2
Output power
CW power stabil-
ity
3, 4
Short term
(15 minutes)
Long term (24
hours)
To back reflection
(RL ≥ 14 dB)
Dimensions
(H x W x D)
Weight
Recalibration period
Operating tempera-
ture
Humidity
Warm-up time
< ± 0.005 dB
Typical < ±0.003 dB with coherence control active
Typical ± 0.03 dB
Typical ± 0.003 dB
< 3.5 nm
1
Supplementary
Performance
Specifications
Internal digital
modulation mode
270 Hz, 330 Hz, 1 kHz, 2 kHz
and free selection 200 Hz to 10 kHz.
All output signals are pulse shaped,
duty cycle 50%.
Internal coherence control for line-
width broadening.
Agilent
81651A
Fabry-Perot Laser
Agilent
81654A
1310 nm
±15 nm
1550 nm
±15 nm
1310/1550 nm
± 15 nm
Single-mode 9/125 µm
< 4.5 nm
< 3.5nm/ 4.5 nm
Output attenuation
The output power of all source mod-
ules can be attenuated from 0 dB to
6 dB in steps of 0.1 dB.
> 0 dBm (1 mW)
Laser safety information
All laser sources listed above are
classified as Class 1 according to
IEC 60825 1 (2001). All laser sources
comply with 21 CFR 1040.10 except
for deviations pursuant to Laser
Notice No. 50, dated 2001-July-26.
75 mm x 32 mm x 335 mm (2.8” x 1.3” x 13.2”)
0.5 kg
2 years
0 ºC to 45 ºC
Non-condensing
60 minutes
3
CLASS 1 LASER PRODUCT
(IEC 60825-1 / 2001)
Figure 1. Laser classification label for Class 1
Table 1. Technical specifications for Fabry-Perot source modules (standard
modules, 0 dBm)
1. Center wavelength is shown on display
2. RMS: root mean square
3. Warm-up time 20 min, if previously stored at the same temperature.
4. Controlled environment (∆T = ± 1 °C)
2
Technical Specifications
Fabry-Perot source module specifications
(high-power modules, 13 dBm)
Specifications apply to the end of a 2 m long fiber cable (as specified under fiber
type) with Diamond® HMS-10/Agilent connectors attached. All specifications
are valid for an attenuation setting of 0.0 dB. All modules require straight output
connectors.
Supplementary
Performance
Specifications
Internal digital
modulation mode
270 Hz, 330 Hz, 1 kHz, 2 kHz
and free selection 200 Hz to 10 kHz.
All output signals are pulse shaped,
duty cycle 50%.
Internal coherence control for line-
width broadening.
Agilent
81655A
Type
Center wavelength
1
Fiber type
Spectral bandwidth
(rms)
1, 2
Output power
CW power stability
Short term
(15 minutes)
Long term (24 hours)
To back reflection
(RL ≥ 14 dB)
Dimensions
(H x W x D)
Weight
Recalibration period
Operating temperature
Humidity
Warm-up time
3, 4
Agilent
81656A
Fabry-Perot Laser
Agilent
81657A
1310 nm
±15 nm
1550 nm
±15 nm
1310/1550 nm
± 15 nm
Standard single-mode 9/125 µm
< 5.5 nm
< 7.5 nm
< 5.5nm/7.5 nm
Output attenuation
The output power of all source mod-
ules can be attenuated from 0 dB to
6 dB in steps of 0.1 dB.
> +13 dBm (20 mW)
Laser safety information
< ± 0.005 dB
Typical < ±0.003 dB with coherence control active
Typical ± 0.03 dB
Typical ± 0.003 dB
All laser sources listed above are
classified as Class 1M according to
IEC 60825 1 (2001). All laser sources
comply with 21 CFR 1040.10 except
for deviations pursuant to Laser
Notice No. 50, dated 2001-July-26.
75 mm x 32 mm x 335 mm (2.8” x 1.3” x 13.2”)
0.5 kg
2 years
0 ºC to 45 ºC
Non-condensing
60 minutes
3
INVISIBLE LASER RADIATION
DO NOT VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS
CLASS 1M LASER PRODUCT
(IEC 60825-1 / 2001)
Figure 2. Laser classification label for Class 1M
Table 2. Technical specifications for Fabry-Perot source modules (high-power
modules, 13 dBm)
1. Center wavelength is shown on display
2. RMS: root mean square
3. Warm-up time 20 min, if previously stored at the same temperature.
4. Controlled environment (∆T = ± 1 °C)
3
Technical Specifications
DFB source module specifications
Specifications apply to maximum power setting.
Agilent
81663A
Option 131
Center wavelength
12
1310 nm
± 5 nm
Agilent
81663A
Option 149
1490 nm
± 3 nm
Agilent
81663A
Option 151
1510 nm
± 3 nm
Agilent
81663A
Option 155
1550 nm
± 3 nm
Agilent
81663A
Option 162
1625 nm
± 3 nm
Agilent 81663A
Options 131, 149, 151, 155, and 162
Type
Tuning range
Display resolution
Repeatability
4
CW DFB laser with built-in isolator
Typical > ± 500 pm
10 pm
± 5 pm (typical ± 2 pm)
± 5 pm (typical ± 2 pm)
typical ± 5 pm
Panda PMF 9 / 125 µm
Compatible to angled contact APC, ASC,
DIN47256/4108
Supplementary
Performance
Characteristics
• Internal digital modulation mode:
Free selection 200 Hz to 100 kHz.
All output signals are pulse shaped
duty cycle 50%.
• Internal coherence control for
linewidth broadening.
• ON-switching with fast output
power stabilization < 20 s.
• Output power “attenuation” at
default wavelength 6 dB in steps of
0.1 dB.
Tuning speed over full range 30 s.
• Polarization maintaining fiber orien-
tation: TE mode in slow axis, in line
with connector key.
Stability (15 minutes)
3, 4
Stability (24 hours)
3, 4
Fiber type
Output connector
6
Power
Maximum output
5
CW stability (15 minutes)
4
CW stability (24 hours)
3, 4
Side mode suppression ratio
(SMSR)
5
Polarization extinction ratio (PER)
Typical > +13 dBm (20 mW)
Typical ±0.003 dB
Typical ±0.01 dB
Typical 45 dB
Laser safety information
Typical > 20 dB
The 81663A DFB Laser Sources listed
above are classified as Class 1M
according to IEC 60825 1 (2001).
All laser sources comply with 21 CFR
1040.10 except for deviations pursu-
ant to Laser Notice No. 50, dated
2001-July-26.
Dimensions
(H x W x D)
Weight
Recalibration period
Operating temperature
Warm-up time
3
75 mm H x 32 mm W x 335 mm D (2.8” x
1.3” x 13.2”)
0.5 kg
2 years
15 ºC to 35 ºC
60 minutes
Table 3. Technical specifications for DFB source modules
1. Center wavelength is shown on display as default.
2. Via GPIB tuning resolution < 10 pm.
3. If previously stored at the same temperature 20 minutes.
4. Controlled environment (∆T = ± 1 °C).
5. At maximum power setting and default wavelength at the end of a 2 m SM patchcord.
6. Connector interface not included.
INVISIBLE LASER RADIATION
DO NOT VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS
CLASS 1M LASER PRODUCT
(IEC 60825-1 / 2001)
Figure 3. Classification label for 1M lasers
4
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Revised: July 17, 2008
Product specifications and descriptions
in this document subject to change
without notice.
© Agilent Technologies, Inc. 2008
Printed in USA, August 20, 2008
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