Atec Agilent-81689A_B-81649A - Manual (Page 4)

Supplementary
performance
characteristics
Modulation
Internal digital modulation
50% duty cycle, 200 Hz to 300 kHz.
>45% duty cycle, 300 kHz to 1 MHz.
Modulation output (via Mainframe):
TTL reference signal.
External digital modulation
> 45% duty cycle, fall time
< 300 ns, 200 Hz to 1 MHz.
Modulation input (via Mainframe):
TTL signal.
External analog modulation
≥
±15% modulation depth,
5 kHz to 1 MHz.
Modulation input: 5 Vp-p
Coherence control
(81649A/81689B)
For measurements on components with 2
m long patchcords and connectors with
14 dB return loss, the effective linewidth
results in a typical power stability of
< ±0.025 dB over
1 minute by reducing interference effects
in the test setup.
General
Output isolation (typ.):
38 dB
Return loss (typ.):
55 dB (options 022, 072)
40 dB (options 021, 071)
Polarization maintaining fiber (Options
071, 072)
Fiber type: Panda.
Orientation: TE mode in slow axis,
in line with connector key.
Extinction ratio: 16 dB typ.
Laser class:
Class IIIb according to FDA 21 CFR
1040.10, Class 3A according to IEC 825
- 1; 1993.
Recommended re-calibration period:
2 years.
Warm-up time:
< 40 min,
immediate operation after boot-up.
Environmental
Storage temperature:
–20 °C to +70 °C (81689A)
–40 °C to +70 °C (81689B, 81649A)
Operating temperature:
15 °C to 35 °C
Humidity:
< 80 % R.H. at 15 °C to 35 °C
Specifications are valid in non-condensing
conditions.
Laser Safety Information
All laser sources specified by this data
sheet 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