A5038120346- Photonic and Optical Devices
- Optical Network Technologies
- Semiconductor Lasers and Optical Devices
- Advanced Fiber Laser Technologies
- Advanced Optical Sensing Technologies
- Advanced Photonic Communication Systems
Mitsubishi Electric (Japan)
2022-2024
To improve the performance of Si photonics-based wavelength locker, a new configuration for compact locker with two grating couplers (GC) and Mach-Zehnder interferometer (MZI) filter used in light source modules was proposed. Simulation results showed that proposed GC structure provides 1.4 times higher peak coupling power over 10 μm mounting tolerance monitored values MZI system enhanced three times. This shows there is feasibility on developing this topology short reach coherent communication.
A φ5.6-mm TO-CAN packaged light source module integrated with a Si photonics-based wavelength locker chip has been fabricated frequency shift of less than ±1.1 GHz, small enough to achieve locking operation compact package for short-reach coherent communication.
We propose and validate a compact Si photonics-based wavelength locker. Our locker does not require separate thermo-electric cooler (TEC) to keep its temperature constant due our proposed monitoring method. Thanks that, this design exhibits 70% footprint reduction compared conventional To simulate concept, we fabricated laser assembly chip mounted on individual TECs controlled their temperatures simultaneously. The measured results show broadening of the free spectral range while maintaining...
We present a Si photonics-based wavelength locker which does not require separate TEC to keep its temperature constant thanks our proposed monitoring method. It exhibits 70% footprint reduction compared conventional locker.
An EML sub-assembly with a terminating resistor optimized for maximum electro-optical bandwidth was successfully demonstrated 800 GbE applications. To improve the 3-dB bandwidth, we employed newly developed shorter EA modulator less than 120 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> long, and adjusted resistance of transmission line. The fabricated exhibited...