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The Anritsu The MG9637A Tunable Laser Source is designed to meet excellent wavelength repeatability, it is achieved by self-calibration and improved reliability using a new external cavity technology. The MG9637A utilize an external optical automatic power control (APC) module, the MG9637A has an Lithium Niobate modulator in the APC section to provide excellent output power stability and S/N ratio. The power of Output 1 of the MG9637A has been stabilized to ±0.01 dB using the APC function, permitting easy and stable wavelength loss measurement of optical devices. In addition, the wavelength flatness is within ±0.1 dB, enabling high-accuracy measurement of wavelength loss without normalization of the output power of the laser source. The coherence control function broadens the linewidth to about 50 MHz eliminating level fluctuations due to interference and permitting accurate measurement. Specifications. Wavelength range: 1500 to 1580 nm. Wavelength setting resolution: 1 pm. Absolute wavelength accuracy: <±0.1 nm. Wavelength stability: <±100 MHz/h. Wavelength repeatability: ±35 pm (80 nm range), Typical: ±7 pm (at ±3 nm, after calibration). Side mode suppression ratio: >45 dB (1520 to 1570 nm), >40 dB (1500 to 1580 nm). Linewidth (typical value): 700 kHz (coherent control: Off), 50 MHz (coherent control: On). Wavelength switching time (typical value): 100 ms/1 nm, 150 ms/10 nm, 500 ms/80 nm. Output 1 Max. output power: >–10 dBm (1520 to 1570 nm), >–13 dBm (1500 to 1580 nm). Output 2 Output power: >–10 dBm. Internal modulation: 200 Hz to 20 kHz (square waveform), Duty: 50%.
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