Paper
24 November 2021 A DFB semiconductor laser integrated with anti-symmetric Bragg grating modulator
Author Affiliations +
Proceedings Volume 12062, AOPC 2021: Optoelectronics and Nanophotonics; 1206203 (2021) https://doi.org/10.1117/12.2600691
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China
Abstract
We propose and theoretically analyze a DFB semiconductor laser monolithically integrated with anti-symmetric Bragg grating (ASBG) modulator. A π phase shifted Bragg grating with single-mode ridge waveguide and an ASBG with multimode waveguide supporting the fundamental transverse electric (TE0) mode and the first order transverse electric (TE1) mode, are joined by a tapered waveguide. After adding a phase shift section between the taper and ASBG, the electro-optical (E/O) response of ASBG modulator increases by 37.9% compared to the normal Bragg grating modulator (BGM), and becomes sensitive to the effective refractive index change of the straight waveguide. The proposed integrated device can be applied in sensing.
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Haoyuan Wu, Yong Zhao, Hongji Wang, Linlin Lu, Yuechun Shi, and Xiangfei Chen "A DFB semiconductor laser integrated with anti-symmetric Bragg grating modulator", Proc. SPIE 12062, AOPC 2021: Optoelectronics and Nanophotonics, 1206203 (24 November 2021); https://doi.org/10.1117/12.2600691
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KEYWORDS
Modulators

Modulation

Waveguides

Phase shifts

Bragg gratings

Semiconductor lasers

Waveguide modes

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