6 papers · 1 filter
Heterogeneous-free narrow linewidth semiconductor laser with optical injection locking
Xiao Sun, Zhibo Li, Yiming Sun +6
Narrow linewidth lasers are indispensable for coherent optical systems, including communications, metrology, and sensing. Although compact semiconductor lasers with narrow linewidt…
Dual-band Photonic Filters with Wide Tunable Range Using Chirped Sampled Gratings
Siemng Zhu, Bocheng Yuan, Weiqing Cheng +6
We have developed a photonic filter featuring dual independently tunable passbands. Employing the reconstruction equivalent-chirp technique, we designed linearly chirped sampled Br…
Widely Tunable Photonic Filter Based on Equivalent Chirped Four-Phase-Shifted Sampled Bragg Gratings
Simeng Zhu, Bocheng Yuan, Mohanad Al-Rubaiee +6
We have developed an integrated dual-band photonic filter (PF) utilizing equivalent chirped four-phase-shifted sidewall-sampled Bragg gratings (4PS-SBG) on a silicon-on-insulator (…
Continuous Phase Modulation Technology Based on Grating Period Interval for High Grating Coupling Efficiency and Precise Wavelength Control
Yiming Sun, Simeng Zhu, Bocheng Yuan +6
A novel grating modulation technique for laser arrays is proposed and demonstrated. This method modifies the initial phase within each grating period, applying a total phase shift…
Narrow Linewidth Distributed Feedback Lasers Utilizing Distributed Phase Shift
Yiming Sun, Bocheng Yuan, Xiao Sun +6
This study proposes and experimentally demonstrates a distributed feedback (DFB) laser with a distributed phase shift (DPS) region at the center of the DFB cavity. By modeling the…
Regrowth-free AlGaInAs MQW polarization controller integrated with sidewall grating DFB laser
Xiao Sun, Song Liang, Weiqing Cheng +8
We report an AlGaInAs multiple quantum well integrated source of polarization controlled light consisting of a polarization mode converter PMC, differential phase shifter(DPS), and…