Ando AQ4321D 可调谐激光源The 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.•Wavelength range: 1520 to 1620 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)