Highly Birefringent D-Shaped Micro-Fiber Device for High-Repetition-Rate-Difference Single-Cavity Dual-Comb Generation
- Resource Type
- Periodical
- Authors
- Ding, Z.; Wang, G.; Xu, F.
- Source
- Journal of Lightwave Technology J. Lightwave Technol. Lightwave Technology, Journal of. 42(10):3877-3883 May, 2024
- Subject
- Communication, Networking and Broadcast Technologies
Photonics and Electrooptics
Optical fiber polarization
Optical fiber devices
Multiplexing
Optical fiber dispersion
Optical fiber couplers
Fabrication
Optical variables measurement
Birefringence
dual comb
fiber lasers
mode-locking
optical microfiber devices
- Language
- ISSN
- 0733-8724
1558-2213
An ultra-high birefringent D-shaped microfiber device with birefringence over 4 × 10 −2 and insertion loss down to 0.2 dB is proposed and experimentally demonstrated. When the all-fiber-compatible device gets applied into a linear single-short fiber laser cavity, dual-comb with large repetition rate up to 431 MHz and high repetition-rate-difference over 250 kHz are realized. The single-cavity laser exploits high birefringence of the device to boost building of asynchronous combs through the polarization-multiplexing method. The achieved repetition-rate-difference is several orders of magnitude larger than previous works, revealing the potential to enhance acquisition rate of certain dual-comb measurement application scenarios.