Study on DFB semiconductor laser based on sampled moiré grating integrated with grating reflector

Chen, Min; Liu, Shengping; Dai, Pan; Zhao, Yong; Chen, Xiangfei

doi:10.1109/icocn.2019.8933926

Cited by 4 publications

(6 citation statements)

References 6 publications

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“…The 60-channel DFB laser array produced by REC technology can control the wavelength error of 83% of the laser within ±0.20 nm and 93.5% of the laser within ±0.30 nm [51], greatly improving the yield. REC technology can not only be used in the manufacturing of parallel DFB laser arrays but also in the manufacturing of series DFB laser arrays [22] and series-parallel combined DFB laser arrays [52].…”

Section: Main Research Progress and Statusmentioning

confidence: 99%

Research Progress of Monolithic Integrated DFB Laser Arrays for Optical Communication

et al. 2022

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Photonic integrated circuits (PICs) play a leading role in modern information and communications technology. Among the core devices in PICs is the distributed feedback (DFB) multi-wavelength semiconductor laser array. Multi-wavelength semiconductor laser arrays can be integrated on a single chip and have the advantages of high stability, good single-mode performance, and narrow line width. The wavelength tuning range has been expanded through the design of the DFB laser array, which is an ideal light source for wavelength-division multiplexing systems. The preparation of DFB laser arrays with a large number of channels, ease of mass production, and accurate emission wavelengths has become an important field of research. The connection methods of lasers in DFB laser arrays are introduced systematically and the current methods of manufacturing multi-wavelength DFB laser arrays covering the perspective of technical principles, technical advantages and disadvantages, main research progress, and research status are summarized.

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Section: Main Research Progress and Statusmentioning

confidence: 99%

Research Progress of Monolithic Integrated DFB Laser Arrays for Optical Communication

et al. 2022

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“…13 In our previous work, we simulated the grating reflector (GR) structure to increase the output power of the laser. 14,15 In the simulation calculation, the output power can reach 130 mW. Now, we design and experimentally demonstrate the GR structure integrated into the tail of the laser, which can act as a reflector for the DFB cavity to increase output power.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous work, we simulated the grating reflector (GR) structure to increase the output power of the laser 14 , 15 . In the simulation calculation, the output power can reach 130 mW.…”

Section: Introductionmentioning

confidence: 99%

High-power eight-wavelength distributed feedback laser array with 100 GHz spacing using grating reflector

Xu,

Sun,

Zhao

et al. 2024

Opt. Eng.

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We propose and experimentally demonstrate a high-power eight-wavelength distributed feedback (DFB) laser array with 100 GHz spacing using the grating reflector (GR). The GR, which is a uniform sampled grating, can provide light reflection instead of high reflection (HR) facet coating. Thus, the front and rear facets are both coated with anti-reflection coatings (AR/AR) to avoid the influence of a random grating phase at the HR facet. Therefore, more output power, better single-longitudinalmode operation, and higher wavelength precision can be simultaneously achieved, compared with traditional DFB lasers with HR/AR facet coatings. The maximum output power and side mode suppression ratio of the fabricated eight-channel GR-DFB laser array as high as 70 mW and 55 dB can be achieved, which may benefit wavelength division multiplexing transmission systems, gas sensors, optical computing systems, and microwave photonic signal processing.

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“…2(a) shows the equivalent refractive index modulation distribution along the cavity. It has a rapidly varying component (blue line) with a slowly varying envelope (red line) [3]. When the slowly changing envelope passes through the zero point, an equivalent π phase shift (π-PS) occurs.…”

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confidence: 99%

“…When the slowly changing envelope passes through the zero point, an equivalent π phase shift (π-PS) occurs. The rapidly varying period and the slowly varying envelope can be adjusted by changing P1 and P2 [3]. For a cavity length L=3.5 mm and with P1=1165 nm and P2 =1163.5 nm, the two π-PSs are located at 1/3L and 2/3L.…”

mentioning

confidence: 99%

Dual Wavelength Laser Designed for Locking to Cs-133 Atomic Transitions

Yuan

Shi

et al. 2021

2021 Conference on Lasers and Electro-Optics Europe &Amp; European Quantum Electronics Conference (CLEO/Europe-EQEC)

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Study on DFB semiconductor laser based on sampled moiré grating integrated with grating reflector

Cited by 4 publications

References 6 publications

Research Progress of Monolithic Integrated DFB Laser Arrays for Optical Communication

Research Progress of Monolithic Integrated DFB Laser Arrays for Optical Communication

High-power eight-wavelength distributed feedback laser array with 100 GHz spacing using grating reflector

Dual Wavelength Laser Designed for Locking to Cs-133 Atomic Transitions

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