Integrated polarization insensitive 1.3/1.55 micrometer duplexer on silica-based technology

Magerand, Jean; Grand, G.; Pouteau, Patrick; Phillippe, P.

doi:10.1117/12.180968

Cited by 5 publications

(2 citation statements)

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“…By changing the spectral filter, we could easily change the observation spectral band during the same night as clearly shown by Berger et al (2001). We could also separate the spectral bands by using a bulk dichroic at the IO chip output or by using a dichroic function on the chip (Magerand et al 1994;Mestric et al 1996). For this purpose, using off-axis parabola for light injection in components is an attractive solution to overcome the limited single-mode range of the injection fibers.…”

Section: Discussionmentioning

confidence: 99%

Integrated optics for astronomical interferometry

Laurent

Rousselet-Perraut

Bénech

et al. 2002

A&A

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Abstract.We report laboratory and on sky characterizations of planar integrated optics beam combiners in the K ([2.0 µm; 2.4 µm]) and K ([2.02 µm; 2.30 µm]) bands. Because of the strong scientific interests of the K band, we have extended the integrated optics technologies available in the telecom range (i.e. at 0.8 µm, 1.3 µm and 1.5 µm) to 2.0-2.5 µm. Ion exchange components optimized for these atmospheric bands provide stable contrasts higher than 95% with a laboratory white-light source and global throughputs of 35% in this spectral range. These results are completed with first stellar interferograms obtained with a silica-on-silicon two-way beam combiner on the IOTA interferometer. We characterized in the H and K bands the throughput of this beam combiner optimized for the H band ([1.47 µm; 1.78 µm]). On-sky fringes obtained on ιAur in the H and K bands clearly demonstrate a high instrumental contrast (larger than 50%) in both bands. This shows that integrated optics works with high performance outside its usual wavelength domain and provides good solutions for astronomical interferometry in a large wavelength range. We have measured single-mode ranges over 1 µm on our components which would allow to observe in two spectral bands simultaneously or to integrate both metrology reference and science signals in a single chip for astrometric applications.

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Section: Discussionmentioning

confidence: 99%

Integrated optics for astronomical interferometry

Laurent

Rousselet-Perraut

Bénech

et al. 2002

A&A

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“…As optical components are data-rate independent, WDM appears to be advantageous for local area, wide area, or metropolitan Networks. Generally, multiplexing or routing integrated devices use several directional couplers 6,7 or Mach-Zehnder interferometers. The broadband duplexing has two main applications in optical telecommunications.…”

Section: Introductionmentioning

confidence: 99%

Design of a <inline-formula><math display="inline" overflow="scroll"><mn>2</mn><mo>-</mo><mo>×</mo><mn>2</mn><mn>0</mn><mn>0</mn><mo>-</mo><mi>nm</mi></math></inline-formula> bandwith integrated optic duplexer

Ghibaudo¹

2003

Opt. Eng

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In the last few years, the growth of data traffic has increased the interest in broadband integrated optical devices. Their applications include, for example, a possibility of bidirectional fiber communications in a single fiber, which is achievable by adding the transmission capacity of two optical telecommunication windows for local area networks (LAN) and wide area networks (WAN) or by combining pump and signal wavelengths in rare earth-doped integrated optical amplifiers. A promising technology to realize those devices is ion exchange in glass. This allows the integration of different functions on a glass substrate with efficient results and a better compatibility in fiber systems at a low cost. We propose an original broadband duplexer based on a leaky structure, which involves a nonresonant coupling and ensures a broadband spectral behavior. The broadband duplexer is first presented, and the focus is specially made on the improvement of the output cross talk through the suppression of parasitical back reflections. Theoretical optimization and validation by simulations follow. The spectral response of the optimized structure displays two duplexing bands of at least 200 nm in width with a total output channels' isolation within 0.6-to 0.8-m range, and a better than 15-dB isolation level within 1.2-to 1.4-m range, with a maximum of 24-dB isolation at 1.31 m.

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Integrated optic broadband duplexer made by ion exchange

Ghibaudo

Broquin

Bénech

2003

Applied Physics Letters

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The development of optical amplification and bidirectional traffic in local and wide area networks requires broadband multiplexers which are able to treat the signal of an entire telecommunication window. A device made by ion exchange and answering to these needs is proposed in this letter. Its working principle, based on a leaky structure is first explained. An experimental result confirming a good broadband spectral behavior is then presented. Its spectral response displays two duplexing bands of at least 100 nm.

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Integrated polarization insensitive 1.3/1.55 micrometer duplexer on silica-based technology

Cited by 5 publications

References 0 publications

Integrated optics for astronomical interferometry

Integrated optics for astronomical interferometry

Design of a <inline-formula><math display="inline" overflow="scroll"><mn>2</mn><mo>-</mo><mo>×</mo><mn>2</mn><mn>0</mn><mn>0</mn><mo>-</mo><mi>nm</mi></math></inline-formula> bandwith integrated optic duplexer

Integrated optic broadband duplexer made by ion exchange

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