Results 41 to 50 of about 15,530 (219)
Cascaded wavelength conversion by four-wave mixing in a strained semiconductor optical amplifier at 10 Gb/s [PDF]
, 1997 We demonstrate for the first time cascaded wavelength conversion by four-wave mixing in a semiconductor optical amplifier. Bit-error-rate performance of
Geraghty, David F. +5 more
core +1 more source
Laser &Photonics Reviews, EarlyView.This work demonstrates a high‐fidelity stability transfer from an optical reference to a high‐repetition‐rate microcomb using a mode‐locked laser bridge. By employing electro‐optic sampling timing detection, femtosecond‐level synchronization and 10−18‐level fractional frequency stability are achieved.
Changmin Ahn +4 more
wiley +1 more source
Absolute calibration of fiber-coupled single-photon detector
, 2014 We show a setup for characterising the efficiency of a single-photon-detector absolutely and with a precision better of 1%. Since the setup does not rely on calibrated devices and can be implemented with standard-optic components, it can be realised in ...
Korzh, Boris +3 more
core +2 more sources
半導体光増幅器を用いた光デジタル・アナログ相互変換 [PDF]
, 2020 デジタル・アナログ変換(D/A変換)とアナログ・デジタル変換(A/D変換)は，電子デバイスや光学システム内でデジタル信号とアナログ信号を接続するための重要な機能であり，通信ネットワークを含む幅広い分野で利用されている．近年，デジタル信号処理技術の発達に伴い，より高性能なD/A変換器やA/D変換器の需要が高まっている．しかし，電気的なD/A変換器やA/D変換器は，ジッタ制限，電磁干渉，RC遅延などの高速動作における固有のボトルネックを有している．よって，コストや複雑さを犠牲とし ...
岡田 拓也
core +1 more source
Electronics Letters, 1994 In-service WDM-based supervisory transmission in four/five EDFA-repeater 375 km/365 km systems is demonstrated. Simultaneous EDFA status-monitoring and fibre fault location are achieved without degrading the 2.5 Gbit/s service.
Y.K. Chen, W.Y. Guo, W.I. Way, S. Chi
openaire +1 more source
Resonant Tunneling Diode‐Integrated Terahertz Transceiver Module for Wireless Communications
Advanced Photonics Research, Volume 7, Issue 4, April 2026.Resonant tunneling diode‐enabled terahertz transceiver module. Terahertz bands are essential for next‐generation wireless communications, offering ultrabroad bandwidth and unprecedented data throughput. However, realizing compact, low‐cost, broadband, and efficient terahertz transceiver modules remains challenging.
Weijie Gao +12 more
wiley +1 more source
Guangtongxin yanjiu, 1997 掺铒光纤放大器（ＥＤＦＡ）是光纤通信系统中的关键器件之一。文中从ＥＤＦＡ的基本理论出发，对ＥＤＦＡ的各种特性进行了计算机模拟分析，并研究了ＥＤＦＡ的长度优化设计，实验结果与理论计算相吻合。
张学勇, 陈永诗
doaj
Design and simulation of 1.28 Tbps dense wavelength division multiplex system suitable for long haul backbone [PDF]
, 2018 Wavelength division multiplex (WDM) system with on / off keying (OOK) modulation and direct detection (DD) is generally simple to implement, less expensive and energy efficient. The determination of the possible design capacity limit, in terms of the bit
Amusan, Akinwumi, Amusan, Elizabeth
core +1 more source
GMPLS energy efficiency scheme for green photonic networks [PDF]
, 2010 Since its emergence the internet has been a significant part of today's modern living. Defined by its interconnections and routing policies, it has fuelled increased demands for provisioning of new more advanced services that are able to dynamically ...
Andonovic, Ivan +2 more
core +1 more source
High‐Performance All‐Optical Modulator Based on Graphene‐Loaded Ultrathin Silicon Slot Waveguides
Advanced Photonics Research, Volume 7, Issue 4, April 2026.A novel scheme composed of graphene‐loaded ultrathin silicon slot waveguide is demonstrated realizing high‐performance all‐optical modulation on silicon photonic platform. Owing to the enhanced light–matter interaction and suppression of two‐photon absorption, the device shows a measured modulation depth over 3dB, a modulation efficiency of 0.086 dB/μm
Zhiang Zhou +9 more
wiley +1 more source