Abstract
A wavelength selective switch (WSS) can route optical signals into any of output ports by wavelength, and is a key component of the reconfigurable optical add/drop multiplexer. We propose a wavefront control type WSS using silicon photonics technology. This consists of several arrayed waveguide gratings sharing a large slab waveguide, wavefront control waveguides and distributed Bragg reflectors. The structure, design method, operating principle, and scalability of the WSS are described and discussed. We designed and fabricated a 1 × 2 wavefront control type WSS using silicon waveguides. This has 16 channels with a channel spacing of 200 GHz. The chip size is 5 mm × 10 mm. The switching operation was achieved by shifting the phase of the light propagating in each wavefront control waveguide, and by controlling the propagation direction in the shared large slab waveguide. Our WSS has no crossing waveguide, so the loss and the variation in loss between channels were small compared to conventional waveguide type WSSs. The heater power required for switching was 183 mW per channel, and the average extinction ratios routed to Output#1 and Output#2 were 9.8 dB and 10.2 dB, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 13573-13589 |
| Number of pages | 17 |
| Journal | Optics Express |
| Volume | 26 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2018 May 14 |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Integrated silicon photonic wavelength-selective switch using wavefront control waveguides. / Nakamura, Fumi; Muramatsu, Kyosuke; Suzuki, Keijiro; Tanizawa, Ken; Ohtsuka, Minoru; Yokoyama, Nobuyuki; Matsumaro, Kazuyuki; Seki, Miyoshi; Koshino, Keiji; Ikeda, Kazuhiro; Namiki, Shu; Kawashima, Hitoshi; Tsuda, Hiroyuki.
In: Optics Express, Vol. 26, No. 10, 14.05.2018, p. 13573-13589.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Integrated silicon photonic wavelength-selective switch using wavefront control waveguides
AU - Nakamura, Fumi
AU - Muramatsu, Kyosuke
AU - Suzuki, Keijiro
AU - Tanizawa, Ken
AU - Ohtsuka, Minoru
AU - Yokoyama, Nobuyuki
AU - Matsumaro, Kazuyuki
AU - Seki, Miyoshi
AU - Koshino, Keiji
AU - Ikeda, Kazuhiro
AU - Namiki, Shu
AU - Kawashima, Hitoshi
AU - Tsuda, Hiroyuki
PY - 2018/5/14
Y1 - 2018/5/14
N2 - A wavelength selective switch (WSS) can route optical signals into any of output ports by wavelength, and is a key component of the reconfigurable optical add/drop multiplexer. We propose a wavefront control type WSS using silicon photonics technology. This consists of several arrayed waveguide gratings sharing a large slab waveguide, wavefront control waveguides and distributed Bragg reflectors. The structure, design method, operating principle, and scalability of the WSS are described and discussed. We designed and fabricated a 1 × 2 wavefront control type WSS using silicon waveguides. This has 16 channels with a channel spacing of 200 GHz. The chip size is 5 mm × 10 mm. The switching operation was achieved by shifting the phase of the light propagating in each wavefront control waveguide, and by controlling the propagation direction in the shared large slab waveguide. Our WSS has no crossing waveguide, so the loss and the variation in loss between channels were small compared to conventional waveguide type WSSs. The heater power required for switching was 183 mW per channel, and the average extinction ratios routed to Output#1 and Output#2 were 9.8 dB and 10.2 dB, respectively.
AB - A wavelength selective switch (WSS) can route optical signals into any of output ports by wavelength, and is a key component of the reconfigurable optical add/drop multiplexer. We propose a wavefront control type WSS using silicon photonics technology. This consists of several arrayed waveguide gratings sharing a large slab waveguide, wavefront control waveguides and distributed Bragg reflectors. The structure, design method, operating principle, and scalability of the WSS are described and discussed. We designed and fabricated a 1 × 2 wavefront control type WSS using silicon waveguides. This has 16 channels with a channel spacing of 200 GHz. The chip size is 5 mm × 10 mm. The switching operation was achieved by shifting the phase of the light propagating in each wavefront control waveguide, and by controlling the propagation direction in the shared large slab waveguide. Our WSS has no crossing waveguide, so the loss and the variation in loss between channels were small compared to conventional waveguide type WSSs. The heater power required for switching was 183 mW per channel, and the average extinction ratios routed to Output#1 and Output#2 were 9.8 dB and 10.2 dB, respectively.
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U2 - 10.1364/OE.26.013573
DO - 10.1364/OE.26.013573
M3 - Article
VL - 26
SP - 13573
EP - 13589
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 10
ER -