Devices for wavelength multiplexing and demultiplexing

Senior, John M.; Cusworth, S.D.

doi:10.1049/ip-j.1989.0033

Cited by 38 publications

(7 citation statements)

References 2 publications

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“…Multiwavelength FBGs have attracted considerable interest for use in wavelength reference or comb filters in WDM systems [6,7]. To fabricate the multiwavelength FBG in a cost-effective and flexible way, here we use an approach presented in [8].…”

Section: Methodsmentioning

confidence: 99%

All optical multi‐tap microwave filter with high sidelobe suppression using peak profile of ASE and one multiwavelength FBG

Xia

Aditya

Shum

et al. 2009

Micro & Optical Tech Letters

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A new all optical 10‐tap microwave filter is proposed using a broadband amplified spontaneous emission (ASE) light source and a single specially designed multiwavelength FBG. Measured results show that the sidelobe suppression is larger than 20 dB. The filter response is insensitive to the polarization state of light. This technique enables one to obtain a simple and low cost photonic microwave filter with a stable response. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2522–2524, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24666

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Section: Methodsmentioning

confidence: 99%

All optical multi‐tap microwave filter with high sidelobe suppression using peak profile of ASE and one multiwavelength FBG

Xia

Aditya

Shum

et al. 2009

Micro & Optical Tech Letters

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“…Monolithic wavelength demultiplexers have been realized in the last decade employing different demultiplexing concepts [2]. Passive realizations are based on wavelength-selective coupling, more channels, thus increasing device dimensions and insertion loss.…”

Section: Status Of Inp-based Demultiplexersmentioning

confidence: 99%

<title>Advances in monolithic InP grating-based WDM components</title>

et al. 1995

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This paper reviews the state-of-the-art of monolithic integration of InP grating-based WDM components. We will discuss the two basic types of InP integrated wavelength demultiplexers: the etched reflection grating spectrograph and the phased-array demultiplexer. They will be compared in terms of their performance and ease of fabrication. Current trends and examples of integration with active components will be presented. In addition, the crucial issue of the wavelength precision of these devices will be addressed.

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“…An accurate control of the distance from the core/clad boundary is necessary in working the half-couplers, because the coupling factor varies appreciably as the minimum distance d" is changed on a 1 μιη-scale for loworder coupling [2][3][4][5], and even more rapidly for highorder coupling. In addition, one shall take into account the tolerance on the fiber outer diameter, which is often well in excess of 1 μπι in ordinary telecommunication fibers, and is usually found uncorrelated from sample to sample a few meters apart along the fiber.…”

Section: Process Control and Diagnostic Measurementsmentioning

confidence: 99%

“…Several reviews [2][3][4] describe the fundamentals and compare the potentialities of each technique. : fused biconical, lapped (or polished) and micro-optic.…”

Section: Introductionmentioning

confidence: 99%

Technology of Lapped Optical-Fiber Couplers

Annovazzi-Lodi¹,

Donati²

1990

Journal of Optical Communications

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The technological steps for the fabrication of lapped fiber couplers are described in detail. Choice of materials and of working parameters as well as the diagnostic measurements of the process are discussed. The guidelines of design are outlined and data on the performances of manifactured wavelength-division-multiplexing couplers are reported. 50mm 2mm see Journal of Optical Communkations.Fig. 1: Geometry of the coupler and of the fiber holder

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Devices for wavelength multiplexing and demultiplexing

Cited by 38 publications

References 2 publications

All optical multi‐tap microwave filter with high sidelobe suppression using peak profile of ASE and one multiwavelength FBG

All optical multi‐tap microwave filter with high sidelobe suppression using peak profile of ASE and one multiwavelength FBG

<title>Advances in monolithic InP grating-based WDM components</title>

Technology of Lapped Optical-Fiber Couplers

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