Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Loop Mirror"”.
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The use of loop mirrors and chirped fibre Bragg gratings in actively-modelocked fibre lasers
… using a dual-wavelength nonlinear optical loop mirror (NOLM) as a modulator. Control over the operating wavelength and intra-cavity dispersion is obtained using a chirped in-fibre Bragg grating.Systems operating both at 76MHz and gigahertz frequencies are presented, the latter using a …
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Novel all-optical switching and processing techniques for optical networking
… linearly-chirped pulses in a nonlinear optical loop mirror (NOLM) revealed that the product of the control-pulse duration and the chirprate of the linearly-chirped pulse should be above a minimum value to ensure a one-to-one relation between the temporal and spectral waveforms after the …
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40Gbit/s dispersion managed soliton transmission
… construction and operation of a recirculating loop. Laser sources and modulators for 40Gbit/s transmission rates are discussed and techniques for acquiring information from the resultant eye are explained.The operation of optically time division demultiplexing with a nonlinear elecro-absorption …
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Switching and generation of ultrashort pulses using all-fibre devices
… centering on the use of the nonlinear-optical loop mirror (NOLM) switch in architectures for the manipulation and generation of ultrashort pulses. Detailed analysis of soliton switching in a single NOLM and cascade of two NOLM's is performed, centering on primary limitations to device …
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All-optical processing using cross-phase modulation
… function was achieved using a nonlinear optical loop mirror). The data, now with each bit or code word having a unique wavelength, is then propagated through a dispersion compensation module. The dispersion compensation effectively re-aligns the data in time and so thus, the timing irregularities …
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Ultrafast Lasers and Amplifiers based on Yb-doped Gain Materials
… oscillator is based on a nonlinear amplifying loop mirror. It outputs 1 nJ pulses at 13 MHz. The oscillator may serve as an extremely stable and compact seed laser for a future high power system.
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On-Orbit Characterization of a Microelectromechanical Systems (MEMS) Deformable Mirror (DM): Mission Results from the Deformable Mirror Demonstration Mission (DeMi) CubeSat
The Deformable Mirror Demonstration Mission (DeMi) CubeSat operated from July 2020 to March 2022 and demonstrated the successful operation of a Microelectromechanical Systems (MEMS) Deformable Mirror (DM) on orbit for the first time. As part of space-borne adaptive optics systems, DMs correct …
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Noise and crosstalk analysis of all-optical time division demultiplexers.
… demultiplexers, namely nonlinear optical loop mirror (NOLM) and terahertz optical asymmetric demultiplexer (TOAD). In order to evaluate the noise and crosstalk performance of NOLM and TOAD demultiplexers, mathematical models are developed to simulate the transmission window for …
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Processing of ultra-short optical pulses for high bit-rate optical communications
… of a nonlinear optical switch (nonlinear optical loop mirror). The flat top of the shaped pulses allows for the mitigation of any mistiming of the original signal across a time window defined by their width, simply by switching them with shorter clean clock pulses. By using a nonlinear switch with …
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All-semiconductor High Power Mode-locked Laser System
… The PSA is configured as a nonlinear optical loop mirror (NOLM). A discrete linear system analysis was carried out to understand the stability of the PSO. Complex envelope measurement using coherent linear optical sampling with mode-locked sources is investigated. It is shown that reliable …
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Nonlinear photonics with applications in lightwave communications
… This method is based on the nonlinear optical loop mirror (NOLM), with consideration focused on the third order nonlinearity. Silicon is considered to be one of the most attractive materials for photonics integrated circuit technology (PIC) due to its compatibility with complementary metal …
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Experimental and theoretical analysis of polarization-maintaining fibre for sensing applications
… time when temperature varies by using a fibre loop mirror (FLM) configuration. To solve the length problem in the low birefringence PCFs, a joint PCF approach can be used by fusion-splicing a short length of Low-Bi with a short section of a Hi-Bi PCF and their sensitivity to lateral pressure …
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Advancing optical interconnects: Exploring low-loss 3D photonic waveguides, loop mirrors, and distributed Bragg reflectors
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-08-01