Fiber Coupled Single Mode and Polarization Maintaining Laser Diode: 350-1650nm
Agiltron offers a range of laser diodes pigtailed with single-mode (SM) optical fiber, categorized by wavelength, output power, spectral width, and package types. The Fabry-Perot (FP) lasers feature a simple design that uses the diode’s back and front facets to form a resonance cavity, resulting in low fabrication costs. For applications requiring narrow peak width, a grating can be integrated into the cavity as a wavelength-selective reflector. The Distributed Feedback Grating (DFB) configuration incorporates a grating directly on the laser chip, with the DFB butterfly package integrated with a power monitor and TEC cooling for output power and wavelength stability. Fiber Bragg Grating (FBG) is also used to form the laser cavity with a narrow peak width. Typical specifications for these configurations are provided in tables, with detailed specifications accessible via a pop-up window by clicking the red button in the Info column. Our packaging process includes cleaving the fiber input at an 8° angle and terminating the output with an angled FC/APC connector to minimize back reflections that could cause output intensity fluctuations. To maintain stable laser output, especially given the sensitivity of these lasers to optical feedback, we recommend using an isolator, which we offer for all wavelengths at competitive prices. The center wavelength listed is typical, but specific center wavelengths can be produced by selecting from production runs. Given that laser diode reliability decreases at higher temperatures, using a temperature controller is advised, and diodes can also be temperature-tuned to adjust the lasing wavelength.
We offer high-precision laser diode power/temperature controllers in the form of turnkey benchtops and modules at competitive prices. They are made for ease of use by plug-in the listed lasers and set the operating parameter by knobs or computer via USB. https://agiltron.com/product/laser-diode-tec-controllers-compact/
It is important to handle laser diodes with proper ESD precautions, such as using ESD finger cots, a wrist strap, and an ion blower. Additionally, cleaning the fiber connector before each use is recommended to remove any dust accumulated during shipping, as the high laser intensity at the fiber tip center can cause burning if contaminants are present.