title: An MMI-based polarization splitter using patterned metal and tilted joint.
abstract: A novel polarization splitter on an InP substrate utilizing an MMI coupler loaded with a dielectric and gold layer pad is proposed and simulated. A tilted joint is used for adjusting the phases of TE and TM modes. The MMI section is less than 540 μm. Simulations show that the device has a polarization extinction ratio over 23 dB and an insertion loss below 0.7 dB over the entire C-band for both TE and TM polarizations. The device design was optimized to maximize the wavelength range and tolerance for manufacturing variations.
authors.affiliation: Mitsubishi Electric Research Laboratories, 201 Broadway, Cambridge, MA 02139, USA. kojima@merl.com
authors.forename: Keisuke
authors.initials: K
authors.lastname: Kojima
authors.forename: Wangqing
authors.initials: W
authors.lastname: Yuan
authors.forename: Bingnan
authors.initials: B
authors.lastname: Wang
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Koike-Akino
authors.forename: Kieran
authors.initials: K
authors.lastname: Parsons
authors.forename: Satoshi
authors.initials: S
authors.lastname: Nishikawa
authors.forename: Eiji
authors.initials: E
authors.lastname: Yagyu