LD-PD's narrow-linewidth 1 μm single-frequency fiber seed laser series features selectable output wavelengths from 1009 nm to 1120 nm and a linewidth of less than 1 KHz. This series adopts a modular and compact optical design, offering miniaturization and high output stability. It operates on a 12 V power supply and supports RS232 serial communication, allowing users to set and monitor the module operating status via host computer software. The module integrates a built-in PZT and amplifier circuit, and provides a PZT RF signal input for convenient PZT scanning. 

Test Results

Linewidth Test (1.4 kHz) (36km Delay Line, HWHM)

Output Spectrum Test Result (Yokogawa OSA)

Laser Frequency Modulation Test (Input Sine Wave Frequency: 10 mHz; Voltage Range: 0–2.4 V; Optical Frequency Tuning Range: 5.5 GHz)

Frequency Stability Test (6 Hours; Wavelength Drift: 0.6 pm)

Power Stability Test (Approx. 20 Hours, 0.8% Fluctuation)