Near Infrared Tunable Diode Laser 1548 nm DPSS Laser
The near infrared tunable diode laser shall be designed and built to meet the following minimum requirements:
1.Mode-hop free fine tuning range of 120-150 pm from the center wavelength
2.Mode-hop free wide tuning range of at least 50 nm
3.Center wavelength of operation at 1548 nm
4.Free-space output power of at least 25 mW at any wavelength within the tuning range
5.The laser head should have an FC/APC PM fiber connector attached to it
6.Fiber-coupled output power of at least 12 mW at any wavelength within the tuning range
7.Tuning speed of at least 15 nm/s
8.Linewidth of at least 200 kHz
9.Wavelength stability of 1-3 pm over 1 hour
10.Power variations of 0.5-1.5% over 1 hour
11.Better than 30 dB isolation
- The laser unit should have a wide range motorized tuning mechanism
- The laser unit should have a fine range piezo tuning mechanism
The entire system should include a low-noise controller
DFB Laser Diode, 1548 nm, 3 GHz, 20 mW, Single Mode
The Optilab DFB-1548-DM-3 Directly-Modulated (DM) DFB laser is a high-speed 1548 nm wavelength laser source for 3 GHz analog or 4 Gb/s digital transmission optical link. Built with Distributed Feed-Back Grating (DFB) as cavity reflector, it provides pure, single longitudinal mode, hopping free and extremely stable wavelength source. This laser diode is fabricated with Multiple Quantum Well (MQW) for excellent reliability and stability. It can be used for CW operation for fiber sensor or coherence interferometer. Or with direct current modulation DFB-1548-DM-3 can be used for DC to 3 GHz analog or up to 4 Gb/s digital modulation. The wavelength choice is from 1529 to 1561 nm. This MQW DFB laser features Up to 20 mW of output optical power, good Side Mode Suppression Ratio (SMSR) and a builtin thermoelectric cooler, thermistor, and rear-facet monitor photodiode for external optical power control. Contact Optilab for more information.