Description: The AQ4321A/AQ4321D Tunable Laser Source is specially designed for DWDM applications, especially for the evaluation of optical components and DWDM systems. These tunable laser sources provide wide wavelength tuning range with great accuracy (±10 pm at 1520 nm). High output power, high SMSR and stability are excellent for the complete characterization of optical components.
It has the following specifications:
Model: AQ4321A
Wavelength range: 1480 to 1580 nm
Wavelength set resolution: 0.001 nm
Wavelength stability: ±100 MHz/h (±0.8 pm/h) (typ.) (2, 3)
Absolute wavelength accuracy:
±0.01 nm 2, 3, 4, 8)
±0.015 nm, ±0.01 nm (typ.) (2, 3, 4, 7)
Relative wavelength accuracy: ±0.01 nm (typ.) (2, 3, 4, 7)
Spectral width:
Narrow 200 kHz (typ.) (1 MHz or less)
Wide 200 MHz (typ.) (100 MHz or more)
SMSR: 50 dB or more (optical output: +7 dBm, 1550 nm)
Optical output:
+10 dBm (typ.) peak (D Model: +7 dBm (typ.) peak)
+7 dBm or more, 1520 to 1570 nm
+5 dBm or more, 1500 to 1580 nm
+3 dBm or more, 1480 to 1580 nm
Settable optical output range: 20 dB or more (0.1 dB steps, at peak wavelength)
Optical output stability:
5 min ±0.01 dB or less (2, 9)
1 h ±0.05 dB or less (5, 9)
8 h ±0.3 dB or less (6, 9)
Optical output accuracy: ±1 dB or less (4, 9)
Optical output reproducibility: ±0.04 dB, optical output fixed (4, 5, 9)
Optical output level flatness: ±0.1 dB (4,9) (1500 to 1580 nm)
RIN: -145 dB/Hz (typ.)
Internal modulation (CHOP):
Set frequency: 0.2 to 300 kHz (10)
Set resolution: 10 Hz, 100 Hz, 1 kHz, 10 kHz, 100 kHz 10)
External modulation (CHOP):
Set frequency: 0.2 to 300kHz (10)
Set resolution: –
Direct modulation: 5% or less (Modulation frequency: 100 kHz to 300 MHz, modulation input level: 0 dBm or less)
Wavelength sweep speed: 100 nm/sec (max.)
Applicable optical fiber: SMF (10/125 µm)
Applicable connector: FC/PC (Standard), optical return loss: 50 dB or more
Notes
1) The above specifications without any special remarks are results under the following conditions: CW light, at the output point of 2 m-long optical fiber, after warming-up for 1 hour
2) Constant temperature: 23 °C
3) Spectral width: Narrow, Sweep FINE, Opt ATTN Cont = 1
4) Optical output level: +3 dBm
5) Within ±1 °C in the range of 10 to 35 °C
6) 10 to 35 °C
7) 2d (1 hour after wavelength calibration)
8) At 1520 nm wavelength
9) Spectral width: wide
10) Duty: 50 ±5 %
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