Related Experiment Video
Updated: Mar 21, 2026
08:48
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
8.1K
External cavity diode laser based upon an FBG in an integrated optical fiber platform
Optics Express
|May 4, 2016
Summary
A new integrated optical fiber laser uses a Bragg grating for stable single-mode operation at 1532.83 nm. This external cavity diode laser shows lower noise and linewidth than commercial options.
Area of Science:
- Photonics and Optical Engineering
- Materials Science
Background:
- External cavity diode lasers (ECDLs) are crucial for applications requiring narrow linewidth and stable operation.
- Existing ECDLs often face challenges in integration, stability, and noise performance.
Purpose of the Study:
- To demonstrate a novel external cavity diode laser (ECDL) utilizing an integrated optical fiber platform.
- To characterize the performance and noise properties of the developed ECDL.
Main Methods:
- Fabrication of an integrated optical fiber platform using flame-hydrolysis deposition to bond photosensitive fiber to a silica-on-silicon wafer.
- Writing a Bragg grating into the fiber using direct UV-writing to form the external cavity.
- Characterization of laser output, including single-mode operation, wavelength, output power, linewidth, and relative intensity noise.
Main Results:
- The laser operates in a single mode at the acetylene P13 line (1532.83 nm) with an output power of 9 mW.
- Achieved a narrow linewidth of less than 14 kHz.
- Demonstrated superior relative intensity noise characteristics compared to a commercial tunable ECDL.
Conclusions:
- The novel integrated optical fiber platform enables the fabrication of high-performance ECDLs.
- The developed laser offers advantages in terms of stability, low noise, and narrow linewidth for spectroscopic and sensing applications.
