Ultra-compact MMI-based beam splitter demultiplexer for the NIR/MIR wavelengths of 1.55 μm and 2 μm.
نویسندگان
چکیده
Based on restricted interferences mechanism in a 1x2 MMI beam splitter, we theoretically investigate and experimentally demonstrate an ultra-compact MMI-based demultiplexer for the NIR/MIR wavelengths of 1.55 μm and 2 μm. The device is fabricated on 340 nm SOI platform, with a footprint of 293x6 μm2. It exhibits extremely low insertion losses of 0.14 dB and 1.2 dB at the wavelengths of 1.55 μm and 2 μm, respectively, with contrasts of approximately 20 dB for both wavelengths, and a cross-talk of 18.83 dB.
منابع مشابه
Polarization Beam Splitter Based on Self-Collimation of a Hybrid Photonic Crystal
A photonic crystal polarization beam splitter based on photonic band gap and self-collimation effects is designed for optical communication wavelengths. The photonic crystal structure consists of a polarization-insensitive self-collimation region and a splitting region. TMand TE-polarized waves propagate without diffraction in the self-collimation region, whereas they split by 90 degrees in the...
متن کاملAn 1×2 SOI Based Optical Splitter with Adding Triangular Air Hole in PBG Cell
With designing air pads on silicon-on-insulator (SOI) wafer periodically as a cellular structure, a 1×2 photonic band gap (PBG) beam splitter is proposed in this article . We study the characteristics of the designed 1×2 SOI PBG beam splitter and simulate the relationship of the two output power with the launching wavelengths. We use finite-difference-time-domain (FDTD) as simulation technique....
متن کاملUltracompact photonic crystal polarization beam splitter based on multimode interference.
We propose a theoretical design for a compact photonic crystal (PC) polarization beam splitter (PBS) based on the multimode interference (MMI) effect. The size of a conventional MMI device designed by the self-imaging principle is not compact enough; therefore, we design a compact PC PBS based on the difference of the interference effect between TE and TM modes. Within the MMI coupler, the depe...
متن کاملNovel ultra-short and ultra-broadband polarization beam splitter based on a bent directional coupler.
A novel ultra-short polarization beam splitter (PBS) based on a bent directional coupler is proposed by utilizing the evanescent coupling between two bent optical waveguides with different core widths. For the bent directional coupler, there is a significant phase-mismatch for TE polarization while the phase-matching condition is satisfied for TM polarization. Therefore, the TM polarized light ...
متن کاملPhotonic Crystal Polarization Beam Splitter in Silicon-On-Insulator Platform
In this work we report an ultracompact (8.7 μm x 10.6 μm) integrated planar photonic crystal polarization beam splitter in silicon-on-insulator platform with 18.6 dB and 11.1 dB extinction ratio at a wavelength of 1520 nm at the outputs for transverse-magnetic and transverse-electric polarization, respectively. The physical separation of both polarization states is achieved by negative and posi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Optics express
دوره 25 10 شماره
صفحات -
تاریخ انتشار 2017