Investigation on two dimensional photonic crystal resonant cavity based bandpass filter

Abstract In this paper, different cavities, namely quasi square, tri-quarter square, square, hexagonal, circular, elliptical, diamond and annular ring based photonic crystal bandpass filters (PCBPFs) are proposed and investigated by exploiting coupling between two in-line quasi waveguides and a resonant cavity. The resonant wavelength, output efficiency and bandwidth of designed PCBPFs are studied by varying the size of the cavity. The normalized transmission spectra of PCBPF are observed using 2D finite difference time domain (FDTD) method. The photonic band gap (PBG) is calculated by plane wave expansion (PWE) method. The circular cavity based PCBPF gives better performance than others because of its circular resonating modes. The number of passbands is increased linearly while increasing the size of the cavity. The overall size of the PCBPF chip is about 11.4 μm × 11.4 μm, which is more suitable for photonic integrated circuits (PIC), wavelength division multiplexing (WDM) systems and sensing applications.

[1]  Toshihiko Baba,et al.  Roadmap on Photonic Crystals , 2003 .

[3]  Lien-Wen Chen,et al.  Channel drop filters with folded directional couplers in two-dimensional photonic crystals , 2010 .

[4]  Min Qiu,et al.  Design of a channel drop filter in a two-dimensional triangular photonic crystal , 2003 .

[5]  C. S. Sotomayor Torres,et al.  Resonant add-drop filter based on a photonic quasicrystal. , 2005, Optics express.

[6]  K. Hwang,et al.  Design of a high-Q channel add-drop multiplexer based on the two-dimensional photonic-crystal membrane structure. , 2005, Optics express.

[7]  Savarimuthu Robinson,et al.  A Bandpass Filter based on 2D circular photonic crystal ring resonator , 2010, 2010 Seventh International Conference on Wireless and Optical Communications Networks - (WOCN).

[8]  M. Tokushima,et al.  Photonic Add–Drop Filter Based on Integrated Photonic Crystal Structures , 2010, IEEE Journal of Selected Topics in Quantum Electronics.

[9]  Bandpass filters based on phase-shifted photonic crystal waveguide gratings. , 2007, Optics express.

[10]  P. Andalib,et al.  Optical add/drop filter based on dual curved photonic crystal resonator , 2008, 2008 IEEE/LEOS International Conference on Optical MEMs and Nanophotonics.

[11]  Chengkuo Lee,et al.  Optimization and comparison of photonic crystal resonators for silicon microcantilever sensors , 2011 .

[12]  J. Joannopoulos,et al.  Photonic crystals: putting a new twist on light , 1997, Nature.

[13]  Nosrat Granpayeh,et al.  Improving the performance of a photonic crystal ring-resonator-based channel drop filter using particle swarm optimization method , 2010 .

[14]  Weisheng Hu,et al.  Channel drop filter in two-dimensional triangular lattice photonic crystals. , 2007, Journal of the Optical Society of America. A, Optics, image science, and vision.

[15]  Weidong Zhou,et al.  Optical add-drop filters based on photonic crystal ring resonators. , 2007, Optics express.

[16]  John,et al.  Strong localization of photons in certain disordered dielectric superlattices. , 1987, Physical review letters.

[17]  Mohammad Sadegh Abrishamian,et al.  A New Bandstop Filter Based on Photonic Crystals , 2008 .

[18]  M. Martinelli,et al.  Bandpass resonant filters in photonic-crystal waveguides , 2003, IEEE Photonics Technology Letters.

[19]  Faraz Monifi,et al.  T-shaped channel-drop filters using photonic crystal ring resonators , 2008 .

[20]  H. Chong,et al.  Comprehensive FDTD modelling of photonic crystal waveguide components. , 2004, Optics express.

[21]  Savarimuthu Robinson,et al.  Channel Drop Filter based on 2D Square-lattice Photonic Crystal Ring Resonator , 2010, 2010 Seventh International Conference on Wireless and Optical Communications Networks - (WOCN).

[22]  M. S. Abrishamian,et al.  Photonic crystal channel drop filters with mirror cavities , 2007 .

[23]  E. Yablonovitch,et al.  Inhibited spontaneous emission in solid-state physics and electronics. , 1987, Physical review letters.

[24]  H. Haus,et al.  Channel drop filters in photonic crystals. , 1998, Optics express.

[25]  Faraz Monifi,et al.  A New Broadband Photonic Crystal Add Drop Filter , 2008 .

[26]  A. Selvarajan,et al.  Investigation of ring resonators in photonic crystal circuits , 2004 .