Tunable ring resonators for silicon Raman laser and amplifier applications
نویسندگان
چکیده
Recently, low threshold Raman silicon lasers based on ring resonator architecture have been demonstrated. One of the key elements of the laser cavity is the directional coupler that couples both pump and signal light in and out of the ring resonator from the bus waveguide. The coupling coefficients are crucial for achieving desired laser performance. In this paper, we report design, fabrication, and characterization of tunable silicon ring resonators for Raman laser and amplifier applications. By employing a tunable coupler, the coupling coefficients for both pump and signal wavelength can be tailored to their optimal values after the fabrication, which significantly increases the processing tolerance and improves the device performance.
منابع مشابه
Wavelength Tunable Laser with Silica-Waveguide Ring Resonators
We have proposed a tunable laser with silica-waveguide ring resonators. In this tunable laser, a semiconductor optical amplifier was passively aligned and mounted onto a silica-waveguide substrate. The ring resonators can be tuned by controlling their temperatures using the thermo optic heaters formed on them, and there are no mechanically moving parts. Thus, they are sufficiently stable and re...
متن کاملUnidirectional, widely-tunable and narrow-linewidth heterogeneously integrated III-V-on-silicon laser.
A heterogeneously integrated widely tunable III-V-on-silicon ring laser with unidirectional operation is demonstrated. 40 nm tuning range (from 1560 nm to 1600 nm) is obtained using the Vernier effect between two ring resonators incorporated in the ring laser cavity. Unidirectional operation is obtained by integrating a DBR reflector coupling the clockwise and counterclockwise mode of the ring ...
متن کاملLaser modelocking and dual wavelength lasing in silicon
Nonlinear optics in silicon has drawn substantial attention in the recent years. In this research, laser mode-locking and dual wavelength lasing are achieved in a fiber-ring-cavity using an Erbium–doped fiber amplifier (EDFA) as a gain medium and a 1.7cm long silicon-on-insular waveguide as pulse compressor, a mode-locker and a Raman gain media. We show that the transient behavior of two photon...
متن کاملAll-Silicon Raman Laser with Quasi-Phase-Matched Structures and Resonators
The principle of all-silicon Raman lasers for an output wavelength of 1.3 μm is presented, which employs quasi-phase-matched structures and resonators to enhance the output power. 1.3-μm laser beams for GE-PONs in FTTH systems generated from a silicon device are very important because such a silicon device can be monolithically integrated with the silicon planar lightwave circuits (Si PLCs) use...
متن کاملNovel Design of Optical Channel Drop Filter Based on Photonic Crystal Ring Resonators
In this paper, a new design of optical channel drop filter based on two- dimensional photonic crystal ring resonators with triangular lattice is proposed. The rods of this structure is silicon with the refractive index 3.46 and the surrounding environment is air with the refractive index of 1.The widest photonic band gap obtained is for filling ratio of r/a = 0.2. The filter’s transmission spec...
متن کامل