scholarly journals High-performance compound-semiconductor integrated circuits for advanced digital coherent optical communications systems

2016 ◽  
Vol 13 (18) ◽  
pp. 20162003-20162003
Author(s):  
Munehiko Nagatani ◽  
Hideyuki Nosaka
Keyword(s):  
Integrated Circuits ◽  
Optical Communications ◽  
High Performance ◽  
Compound Semiconductor ◽  
Communications Systems

PERFORMANCE AT THE EDGE: GALLIUM ARSENIDE AND SILICON ICs FOR OPTICAL ELECTRONICS

1991 ◽  
Vol 02 (03) ◽  
pp. 147-162 ◽  
Author(s):  
ROBERT G. SWARTZ
Keyword(s):  
Gallium Arsenide ◽  
Optical Communication ◽  
Optical Communications ◽  
Integrated Circuit ◽  
High Performance ◽  
Compound Semiconductor ◽  
Performance Curve ◽  
Semiconductor Technology ◽  
Market Trends ◽  
Circuit Technology

Compound semiconductor technology is rapidly entering the mainstream, and is quickly finding its way into consumer applications where high performance is paramount. But silicon integrated circuit technology is evolving up the performance curve, and CMOS in particular is consuming ever more market share. Nowhere is this contest more clearly evident than in optical communications. Here applications demand performance ranging from a few hundreds of megahertz to multi-gigahertz, from circuits containing anywhere from tens to tens of thousands of devices. This paper reviews the high performance electronics found in optical communication applications from a technology standpoint, illustrating merits and market trends for these competing, yet often complementary IC technologies.

scholarly journals Advanced Integrated Photonic Filters Designed with Coupled Sagnac Loop Reflectors

2020 ◽  
Author(s):  
David Moss
Keyword(s):  
Optical Communications ◽  
High Performance ◽  
Structural Parameters ◽  
Spectral Slope ◽  
Practical Applications ◽  
Communications Systems ◽  
Switching Functions ◽  
Fabrication Tolerances ◽  
The Impact ◽  
Mode Interference

<p>We theoretically investigate integrated photonic resonators formed by two mutually coupled Sagnac loop reflectors (MC-SLRs). Mode interference in the MC-SLR resonators is tailored to achieve versatile filter shapes with high performance, which enable flexible spectral engineering for diverse applications. By adjusting the reflectivity of the Sagnac loop reflectors (SLRs) as well as the coupling strength between different SLRs, we achieve optical analogues of Fano resonance with ultrahigh spectral slope rates, wavelength interleaving / non-blocking switching functions with significantly enhanced filtering flatness, and compact bandpass filters with improved roll-off. In our designs the requirements for practical applications are considered, together with detailed analyses of the impact of structural parameters and fabrication tolerances. These results highlight the strong potential of MC-SLR resonators as advanced multi-functional integrated photonic filters for flexible spectral engineering in optical communications systems.</p>

scholarly journals Advanced Integrated Photonic Filters Designed with Coupled Sagnac Loop Reflectors

2020 ◽  
Author(s):  
David Moss
Keyword(s):  
Optical Communications ◽  
High Performance ◽  
Structural Parameters ◽  
Spectral Slope ◽  
Practical Applications ◽  
Communications Systems ◽  
Switching Functions ◽  
Fabrication Tolerances ◽  
The Impact ◽  
Mode Interference

<p>We theoretically investigate integrated photonic resonators formed by two mutually coupled Sagnac loop reflectors (MC-SLRs). Mode interference in the MC-SLR resonators is tailored to achieve versatile filter shapes with high performance, which enable flexible spectral engineering for diverse applications. By adjusting the reflectivity of the Sagnac loop reflectors (SLRs) as well as the coupling strength between different SLRs, we achieve optical analogues of Fano resonance with ultrahigh spectral slope rates, wavelength interleaving / non-blocking switching functions with significantly enhanced filtering flatness, and compact bandpass filters with improved roll-off. In our designs the requirements for practical applications are considered, together with detailed analyses of the impact of structural parameters and fabrication tolerances. These results highlight the strong potential of MC-SLR resonators as advanced multi-functional integrated photonic filters for flexible spectral engineering in optical communications systems.</p>

Design and Fabrication of Dispersion Controlled and Polarization Maintaining Photonic Crystal Fibers for Optical Communications Systems

2003 ◽  
Vol 797 ◽  
Author(s):  
Satoki Kawanishi ◽  
Takashi Yamamoto ◽  
Hirokazu Kubota ◽  
Masatoshi Tanaka ◽  
Syun-ichiro Yamaguchi
Keyword(s):  
Photonic Crystal ◽  
Optical Communications ◽  
High Performance ◽  
Photonic Crystal Fibers ◽  
Polarization State ◽  
Communications Systems ◽  
Polarization Maintaining ◽  
Single Polarization ◽  
Crystal Fibers ◽  
Air Hole

ABSTRACTRecent progress on photonic crystal fibers (PCFs) is reviewed aiming at their application to high performance optical communications sytems. The optical properties, for example dispersion characteristics, can be set by selecting the appropriate combination of air hole diameter and air hole pitch. A noteworthy characteristic of PCFs is their strong birefringence, which suggests optical components with better polarization maintaining characteristics.This paper describes the characteristics of dispersion controlled PCFs and polarization maintaining PCFs. It describes theoretical analyses and experimental results of fabricated PCFs that have short wavelength zero dispersion at 810 nm, polarization maintaining capability with birefringence of 1 × 10−3, polarization maintaining dispersion flattened functions, and absolute single polarization state support with polarization dependent loss of 1 dB/m at 1550 nm. A supercontinuum generation experiment with PM-PCF in the 1550 nm region is shown with symmetrical spectral broadening to over 40 nm. The potential of PCFs will be discussed with reference to the next generation optical communications systems.

The Structure and Properties of MoSi2 Thin Film in Mos Process

1980 ◽  
Vol 38 ◽  
pp. 326-327
Author(s):  
C.K. Wu ◽  
P. Chang ◽  
N. Godinho
Keyword(s):  
Thin Film ◽  
Integrated Circuits ◽  
High Performance ◽  
Large Scale ◽  
Process Development ◽  
Structure And Properties ◽  
Metal Silicides ◽  
High Oxidation ◽  
Important Approach ◽  
High Oxidation Resistance

Recently, the use of refractory metal silicides as low resistivity, high temperature and high oxidation resistance gate materials in large scale integrated circuits (LSI) has become an important approach in advanced MOS process development (1). This research is a systematic study on the structure and properties of molybdenum silicide thin film and its applicability to high performance LSI fabrication.

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