Low-operating-energy directly modulated lasers for short-distance optical interconnects

S Matsuo, T Kakitsuka - Advances in Optics and Photonics, 2018 - opg.optica.org
We review recent developments in directly modulated lasers (DMLs) with low operating
energy for datacom and computercom applications. Key issues are their operating energy …

High-performance silicon photonics technology for telecommunications applications

K Yamada, T Tsuchizawa, H Nishi, R Kou… - … and Technology of …, 2014 - iopscience.iop.org
By way of a brief review of Si photonics technology, we show that significant improvements
in device performance are necessary for practical telecommunications applications. In order …

Monolithic integration of silicon-, germanium-, and silica-based optical devices for telecommunications applications

T Tsuchizawa, K Yamada, T Watanabe… - IEEE Journal of …, 2010 - ieeexplore.ieee.org
This paper presents our recent progress with the integration of silicon (Si) photonic devices
for optical telecommunications. To integrate Si wire waveguides, germanium (Ge) …

Monolithic integration of a silica AWG and Ge photodiodes on Si photonic platform for one-chip WDM receiver

H Nishi, T Tsuchizawa, R Kou, H Shinojima… - Optics …, 2012 - opg.optica.org
On the silicon (Si) photonic platform, we monolithically integrated a silica-based arrayed-
waveguide grating (AWG) and germanium (Ge) photodiodes (PDs) using low-temperature …

Membrane distributed-reflector laser integrated with SiOx-based spot-size converter on Si substrate

H Nishi, T Fujii, K Takeda, K Hasebe, T Kakitsuka… - Optics express, 2016 - opg.optica.org
We demonstrate monolithic integration of a 50-μm-long-cavity membrane distributed-
reflector laser with a spot-size converter, consisting of a tapered InP wire waveguide and an …

Compact single-chip VMUX/DEMUX on the silicon-on-insulator platform

D Feng, NN Feng, CC Kung, H Liang, W Qian… - Optics express, 2011 - opg.optica.org
We demonstrate a compact, single-chip 40-channel, dense wavelength division multiplexing
(DWDM) variable attenuator multi/demultiplexer (VMUX/DEMUX) by monolithic integration of …

On-chip generation and demultiplexing of quantum correlated photons using a silicon-silica monolithic photonic integration platform

N Matsuda, P Karkus, H Nishi, T Tsuchizawa… - Optics express, 2014 - opg.optica.org
We demonstrate the generation and demultiplexing of quantum correlated photons on a
monolithic photonic chip composed of silicon and silica-based waveguides. Photon pairs …

Reconfigurable multichannel amplitude equalizer based on cascaded silicon photonic microrings

C Zhang, S Liu, H Yan, D Liu, L Zhang, H Li… - Photonics …, 2023 - opg.optica.org
A compact on-chip reconfigurable multichannel amplitude equalizer based on cascaded
elliptical microrings is proposed and demonstrated experimentally. With the optimized …

Multichannel tunable narrowband mid-infrared optical filter based on phase-change material Ge2Sb2Te5 defect layers

K Zhou, Q Cheng, L Lu, B Li, J Song, M Si, Z Luo - Applied Optics, 2020 - opg.optica.org
The defect mode, which exists at the defect layer of a one-dimensional photonic crystal
(1DPhC) heterostructure, provides the possibility of realizing narrowband transmission …

Design of an on-chip electrically driven, position-adapted, fully integrated erbium-based waveguide amplifier for silicon photonics

P Zhou, B Wang, X Wang, B Wang, Y He… - OSA Continuum, 2021 - opg.optica.org
Erbium-doped waveguide amplifiers are important for silicon photonic large-scale
integration. They boost the optical signal to compensate for the on-chip loss of the whole …