Ultrashort Photonic Crystal Optical Switch Actuated by a Microheater

Daryl M. Beggs; Thomas P. White; Lee Cairns; Liam O'Faolain; Thomas F. Krauss

doi:10.1109/LPT.2008.2008104

Ultrashort Photonic Crystal Optical Switch Actuated by a Microheater

Daryl M. Beggs, Thomas P. White, Lee Cairns, Liam O'Faolain, Thomas F. Krauss

Research output: Contribution to journal › Article (Academic Journal) › peer-review

60 Citations (Scopus)

Abstract

We demonstrate a silicon photonic crystal (PhC) optical switch with a 20-mu s response time controlled by a thermo-optic microheater. The switch consists of a dispersion engineered PhC directional coupler that is only 4.9 mu m long. Optical and electrical isolation is provided by backfilling the holes and embedding the PhC in a silca cladding to produce a vertically symmetric structure that is more robust than a membrane geometry. No increase in optical loss is observed due to the silica. cladding, despite operating above the lightline; the insertion loss for airbridge and silica embedded structures are comparable at 1-2 dB.

Original language	Undefined/Unknown
Pages (from-to)	24-26
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	21
Issue number	1-4
DOIs	https://doi.org/10.1109/LPT.2008.2008104
Publication status	Published - 1 Jan 2009

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abstract = "We demonstrate a silicon photonic crystal (PhC) optical switch with a 20-mu s response time controlled by a thermo-optic microheater. The switch consists of a dispersion engineered PhC directional coupler that is only 4.9 mu m long. Optical and electrical isolation is provided by backfilling the holes and embedding the PhC in a silca cladding to produce a vertically symmetric structure that is more robust than a membrane geometry. No increase in optical loss is observed due to the silica. cladding, despite operating above the lightline; the insertion loss for airbridge and silica embedded structures are comparable at 1-2 dB.",

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T1 - Ultrashort Photonic Crystal Optical Switch Actuated by a Microheater

AU - Beggs, Daryl M.

AU - White, Thomas P.

AU - Cairns, Lee

AU - O'Faolain, Liam

AU - Krauss, Thomas F.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - We demonstrate a silicon photonic crystal (PhC) optical switch with a 20-mu s response time controlled by a thermo-optic microheater. The switch consists of a dispersion engineered PhC directional coupler that is only 4.9 mu m long. Optical and electrical isolation is provided by backfilling the holes and embedding the PhC in a silca cladding to produce a vertically symmetric structure that is more robust than a membrane geometry. No increase in optical loss is observed due to the silica. cladding, despite operating above the lightline; the insertion loss for airbridge and silica embedded structures are comparable at 1-2 dB.

AB - We demonstrate a silicon photonic crystal (PhC) optical switch with a 20-mu s response time controlled by a thermo-optic microheater. The switch consists of a dispersion engineered PhC directional coupler that is only 4.9 mu m long. Optical and electrical isolation is provided by backfilling the holes and embedding the PhC in a silca cladding to produce a vertically symmetric structure that is more robust than a membrane geometry. No increase in optical loss is observed due to the silica. cladding, despite operating above the lightline; the insertion loss for airbridge and silica embedded structures are comparable at 1-2 dB.

U2 - 10.1109/LPT.2008.2008104

DO - 10.1109/LPT.2008.2008104

M3 - Article (Academic Journal)

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VL - 21

SP - 24

EP - 26

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

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