Results 51 to 60 of about 4,432 (220)
COMPARISON OF ASE SPECTRUMS OF SINGLE PASS AND DOUBLE PASS Er, Yb, Er-Yb DOPED FIBER AMPLIFIERS
Gazi Üniversitesi Fen Bilimleri DergisiIn this study, the amplified spontaneous emission (ASE) spectra of Erbium (EDFA), Ytterbium (YDFA), and Erbium-Ytterbium (EYDFA) doped optical amplifiers were obtained in single-pass and double-pass simulation setups, compared and interpreted with each ...
Murat Yücel , Pouria Pishgam
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Spatial‐Wavelength Multiplexing Error‐Controlled Photonic Analog Computing System
Advanced Science, Volume 13, Issue 28, 18 May 2026.A novel photonic integrated circuit prototype implementing the concept of general‐purpose analog computing and demonstrate its capability in radio frequency applications. The chip features a multichannel architecture and performs fully optical analog computation with frequency‐domain parallel processing. An FPGA‐based error‐correction algorithm aims to
Tao Zhu +15 more
wiley +1 more source
Guangtongxin yanjiu, 2019 针对现有的光时域反射仪（OTDR）在监测带有掺铒光纤放大器（EDFA）的长途多跨段光纤链路时,为克服EDFA增益的波动需增加一个额外的补光来保持功率稳定的问题,文章基于线性调频OTDR提出了一种无需补光穿越EDFA的长途多跨段光纤监测技术。该技术利用线性调频准连续光作为探测光,可以避免EDFA增益的波动。同时通过分数域傅里叶滤波来去除级联EDFA累积的自发辐射白噪声,从而提高接收信号的信噪比。实验结果表明,该技术能够准确地测出中长途多跨段光纤链路中EDFA和连接点处的反射事件。
王强 +7 more
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Highly Versatile Real‐Time Optical Noise Filtering Through Temporal Cloaking
Laser &Photonics Reviews, Volume 20, Issue 10, 22 May 2026.Conventional bandpass filtering strategies may be insufficient for recovering optical waveforms under extremely noisy conditions. We demonstrate a temporal‐cloaking denoising strategy enabled by the temporal Talbot effect, which concentrates the coherent signal of interest into short temporal slots while broadband noise remains temporally spread.
Majid Goodarzi +5 more
wiley +1 more source
Guangtongxin yanjiu, 2001 文章给出了计算 OXC级联信噪比的一般解析模型 ,并针对“信号功率均衡”和“总功率均衡”两种方案进行了研究 ,分析了在这两种特定情况下系统的信噪比特性 .同时还给出了OXC中输入 EDFA和输出 EDFA特性对系统信噪比的不同影响 ,得出了在设计 OXC时对输入 EDFA和输出 ...
秦涛 +4 more
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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, 1999 本文阐述了ＤＷＤＭ 系统对ＥＤＦＡ 的要求和ＥＤＦＡ 为达到这些要求的几种实现方法。并给出了ＤＷＤＭ 用ＥＤＦＡ 级联和增益锁定的实验结果。
龙浩, 黄宣泽, 张学勇, 印新达
doaj
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
Modeling, optimization, and experimental evaluation of remotely pumped double-pass EDFA
, 2007 A simple rate equation model of double pass (DP) Erbium-doped fiber amplifier (EDFA) is developed based on the Giles and Desurvire (1991) model of single pass (SP) EDFA.
A. R. Faidz +13 more
core +1 more source
Digitally Tunable Dispersion Controller Using Low‐Loss Silicon Nitride Multimode Waveguide Gratings
Nanophotonics, Volume 15, Issue 8, 24 April 2026.A digitally tunable dispersion controller (DTDC) using low‐loss silicon nitride multimode waveguide gratings is demonstrated. Utilizing cascaded chirped multimode waveguide gratings and Mach–Zehnder switches, the device achieves a tuning range of 0–49.72 ps/nm with 1.60 ps/nm steps over a 26‐nm bandwidth.
Weihan Wang +9 more
wiley +1 more source