InGaAsP/InP based Flattened Ring Resonators with Etched Beam Splitters

Norberg, Erik; Parker, John S.; Krishnamachari, Uppili; Guzzon, Robert S.; Coldren, L.A.

doi:10.1364/ipnra.2009.iwa1

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…For integrated optics this is seldom the case, thus, a more rigorous approach is needed. So far, most predictions on EBS performance has been done using numerical 2D-FDTD simulations [8][9][10]14]. Some full 3D-FDTD treatment of EBS structure has recently been reported [12,13].…”

Section: Ebs Design and Modelingmentioning

confidence: 99%

“…More recently, the EBS has demonstrated better performance with silicon-on-insulator (SOI) [12], AlGaAs [13] and polymer based waveguide platforms [8]. We have extended to the InP/InGaAsP material system in order to integrate the EBS coupler with an active gain platform [14,15]. Here, we report on the modeling, fabrication and characterization of such EBS couplers in InP/InGaAsP.…”

Section: Introductionmentioning

confidence: 99%

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Etched beam splitters in InP/InGaAsP

et al. 2011

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An etched beam splitter (EBS) photonic coupler based on frustrated total internal reflection (FTIR) is designed, fabricated and characterized in the InP/InGaAsP material system. The EBS offers an ultra compact footprint (8x11 μm) and a complete range of bar/cross coupling ratio designs. A novel pre-etching process is developed to achieve sufficient depth of the etched coupling gaps. Fabricated EBS couplers demonstrate insertion loss between 1 and 2.6 dB with transmission (cross-coupling) ≤ 10%. The results show excellent agreement with 3D finite-difference time-domain (FDTD) modeling. The coupling of EBS has weak wavelength dependence in the C-band, making it suitable for wavelength division multiplexing (WDM) or other wide bandwidth applications. Finally, the EBS is integrated with active semiconductor optical amplifier (SOA) and phase-modulator components; using a flattened ring resonator structure, a channelizing filter tunable in both amplitude and center frequency is demonstrated, as well as an EBS coupled ring laser.

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Section: Ebs Design and Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Etched beam splitters in InP/InGaAsP

et al. 2011

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“…The gap in the CGC between two waveguides functions as a half mirror. References [3][4][5] have demonstrated that an air slit could be used as a half mirror or a corner mirror. The fabrication of the CGC is relatively easy because complicated …”

Section: Design Of Cgc DC and Mmi Coupler Structuresmentioning

confidence: 99%

Comparative simulation of three types of 3-dB coupler using a Si wire waveguide

Tanaka

Ikuma

Tsuda

et al. 2010

International Conference on Communications and Electronics 2010

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We have proposed a cross gap coupler (CGC), which has an X-junction with an internal mirror at the cross section. We compared the splitting properties of three types of 3-dB coupler using a silicon wire waveguide; a CGC, a directional coupler (DC), and a multimode interference (MMI) coupler. The wavelength dependences of these structures were simulated (or evaluated) by two-dimensional finite-difference time-domain (2-D FDTD) method. The CGC showed smaller wavelength dependence in comparison to the other types of coupler.

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