Photonic-crystal spot-size converter

Hideo Kosaka; Takayuki Kawashima; Akihisa Tomita; Takashi Sato; Shojiro Kawakami

doi:10.1063/1.125743

Photonic-crystal spot-size converter

Hideo Kosaka, Takayuki Kawashima, Akihisa Tomita, Takashi Sato, Shojiro Kawakami

Research Institute of Electrical Communication (RIEC)

Research output: Contribution to journal › Article › peer-review

57 Citations (Scopus)

Abstract

We have demonstrated a spot-size converter (SSC) that is made of photonic crystals (PCs) and has a conversion ratio of 10:1 for a 1-μm-wavelength light beam. Its real-spatial distribution was narrowed by intentionally broadening its wave vector distribution and increasing effective refractive index. The advantage of this PC-based SSC over conventional bulk-based SSC are compactness (monolithic integration), positional independence, and extremely deep depth of focus. This PC-SSC is a candidate for an interface between photonic-crystal waveguides and conventional optical waveguides.

Original language	English
Pages (from-to)	268-270
Number of pages	3
Journal	Applied Physics Letters
Volume	76
Issue number	3
DOIs	https://doi.org/10.1063/1.125743
Publication status	Published - 2000 Jan 17

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.125743

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AU - Kosaka, Hideo

AU - Kawashima, Takayuki

AU - Tomita, Akihisa

AU - Sato, Takashi

AU - Kawakami, Shojiro

PY - 2000/1/17

Y1 - 2000/1/17

N2 - We have demonstrated a spot-size converter (SSC) that is made of photonic crystals (PCs) and has a conversion ratio of 10:1 for a 1-μm-wavelength light beam. Its real-spatial distribution was narrowed by intentionally broadening its wave vector distribution and increasing effective refractive index. The advantage of this PC-based SSC over conventional bulk-based SSC are compactness (monolithic integration), positional independence, and extremely deep depth of focus. This PC-SSC is a candidate for an interface between photonic-crystal waveguides and conventional optical waveguides.

AB - We have demonstrated a spot-size converter (SSC) that is made of photonic crystals (PCs) and has a conversion ratio of 10:1 for a 1-μm-wavelength light beam. Its real-spatial distribution was narrowed by intentionally broadening its wave vector distribution and increasing effective refractive index. The advantage of this PC-based SSC over conventional bulk-based SSC are compactness (monolithic integration), positional independence, and extremely deep depth of focus. This PC-SSC is a candidate for an interface between photonic-crystal waveguides and conventional optical waveguides.

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Photonic-crystal spot-size converter

Abstract

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