Junction-type photonic crystal waveguides for notch- and pass-band filtering

Naeem Shahid; Muhammad Amin; Shagufta Naureen; Marcin Świłło; S. Anand

doi:10.1364/OE.19.021074

Junction-type photonic crystal waveguides for notch- and pass-band filtering

Naeem Shahid, Muhammad Amin, Shagufta Naureen, Marcin Świłło, S. Anand

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

15 Scopus citations

Abstract

Evolution of the mode gap and the associated transmission mini stop-band (MSB) as a function of photonic crystal (PhC) waveguide width is theoretically and experimentally investigated. The change of line-defect width is identified to be the most appropriate way since it offers a wide MSB wavelength tuning range. A high transmission narrow-band filter is experimentally demonstrated in a junction-type waveguide composed of two PhC waveguides with slightly different widths. The full width at half maximum is 5.6 nm; the peak transmission is attenuated by only ∼5 dB and is ∼20 dB above the MSBs. Additionally, temperature tuning of the filter were also performed. The results show red-shift of the transmission peak and the MSB edges with a gradient of dλ/dT = 0.1 nm/°C. It is proposed that the transmission MSBs in such junction-type cascaded PhC waveguides can be used to obtain different types of filters. © 2011 Optical Society of America.

Original language	English (US)
Pages (from-to)	21074
Journal	Optics Express
Volume	19
Issue number	21
DOIs	https://doi.org/10.1364/OE.19.021074
State	Published - Oct 7 2011

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OE.19.021074

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title = "Junction-type photonic crystal waveguides for notch- and pass-band filtering",

abstract = "Evolution of the mode gap and the associated transmission mini stop-band (MSB) as a function of photonic crystal (PhC) waveguide width is theoretically and experimentally investigated. The change of line-defect width is identified to be the most appropriate way since it offers a wide MSB wavelength tuning range. A high transmission narrow-band filter is experimentally demonstrated in a junction-type waveguide composed of two PhC waveguides with slightly different widths. The full width at half maximum is 5.6 nm; the peak transmission is attenuated by only ∼5 dB and is ∼20 dB above the MSBs. Additionally, temperature tuning of the filter were also performed. The results show red-shift of the transmission peak and the MSB edges with a gradient of dλ/dT = 0.1 nm/°C. It is proposed that the transmission MSBs in such junction-type cascaded PhC waveguides can be used to obtain different types of filters. {\textcopyright} 2011 Optical Society of America.",

author = "Naeem Shahid and Muhammad Amin and Shagufta Naureen and Marcin {\'S}wi{\l}{\l}o and S. Anand",

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T1 - Junction-type photonic crystal waveguides for notch- and pass-band filtering

AU - Shahid, Naeem

AU - Amin, Muhammad

AU - Naureen, Shagufta

AU - Świłło, Marcin

AU - Anand, S.

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2011/10/7

Y1 - 2011/10/7

N2 - Evolution of the mode gap and the associated transmission mini stop-band (MSB) as a function of photonic crystal (PhC) waveguide width is theoretically and experimentally investigated. The change of line-defect width is identified to be the most appropriate way since it offers a wide MSB wavelength tuning range. A high transmission narrow-band filter is experimentally demonstrated in a junction-type waveguide composed of two PhC waveguides with slightly different widths. The full width at half maximum is 5.6 nm; the peak transmission is attenuated by only ∼5 dB and is ∼20 dB above the MSBs. Additionally, temperature tuning of the filter were also performed. The results show red-shift of the transmission peak and the MSB edges with a gradient of dλ/dT = 0.1 nm/°C. It is proposed that the transmission MSBs in such junction-type cascaded PhC waveguides can be used to obtain different types of filters. © 2011 Optical Society of America.

AB - Evolution of the mode gap and the associated transmission mini stop-band (MSB) as a function of photonic crystal (PhC) waveguide width is theoretically and experimentally investigated. The change of line-defect width is identified to be the most appropriate way since it offers a wide MSB wavelength tuning range. A high transmission narrow-band filter is experimentally demonstrated in a junction-type waveguide composed of two PhC waveguides with slightly different widths. The full width at half maximum is 5.6 nm; the peak transmission is attenuated by only ∼5 dB and is ∼20 dB above the MSBs. Additionally, temperature tuning of the filter were also performed. The results show red-shift of the transmission peak and the MSB edges with a gradient of dλ/dT = 0.1 nm/°C. It is proposed that the transmission MSBs in such junction-type cascaded PhC waveguides can be used to obtain different types of filters. © 2011 Optical Society of America.

UR - http://hdl.handle.net/10754/561663

UR - https://www.osapublishing.org/oe/abstract.cfm?uri=oe-19-21-21074

UR - http://www.scopus.com/inward/record.url?scp=80053961154&partnerID=8YFLogxK

U2 - 10.1364/OE.19.021074

DO - 10.1364/OE.19.021074

M3 - Article

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SP - 21074

JO - Optics Express

JF - Optics Express

IS - 21

ER -

Junction-type photonic crystal waveguides for notch- and pass-band filtering

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