Low‐loss and broadband InP mirror‐based out‐of‐plane optical coupler
نویسندگان
چکیده
The authors developed a mirror-based out-of-plane optical coupler (MOOC) for InP photonic integrated circuits (PICs). has the coupling loss and alignment tolerance comparable to those of conventional edge coupler. An asymmetric Mach–Zehnder interferometer (a-MZI) with MOOC exhibits little wavelength-dependent (WDL) high extinction ratio (ER) >20 dB over 100-nm wavelength bandwidth. In addition, temperature-independent transmittance spectra were obtained. Finally, fabricated 4-ch array pitch 40 μm, which corresponds core practical multi-core fibre (MCF).
منابع مشابه
Optical microfiber coupler for broadband single-mode operation.
We present a broadband single-mode bi-conical microfiber coupler (MFC) with a specifically designed transition region that effectively suppresses any higher-order modes present at the input fiber and provides efficient power splitting into the fundamental mode at the two output ports. As a practical example, single-mode 3-dB splitting operation over a broad spectral window (400 approximately 17...
متن کاملBroadband terahertz fiber directional coupler.
We present the design of a short broadband fiber directional coupler for terahertz (THz) radiation and demonstrate a 3 dB coupler with a bandwidth of 0.6 THz centered at 1.4 THz. The broadband coupling is achieved by mechanically downdoping the cores of a dual-core photonic crystal fiber by microstructuring the cores. This is equivalent to chemical downdoping but is easier to realize experiment...
متن کاملSize and Design of BroadBand Coupler
Systems generally require wireless communication antennas able to operate in different frequency ranges to meet different communication protocols [3]-[5], this can be done using broadband antennas and multi-band but these are large and difficult to integrate into small mobile devices. This concern with frequency agility is also the need to increase the directivity of the antenna; we proceed to ...
متن کاملDevelopment of a vertical optical coupler using a slanted etching of InP/InGaAsP waveguide
We demonstrate a simple and efficient optical coupler for vertical coupling between optical fibers and InP-based waveguides using a slant-etched mirror. The angle of the etched mirror can be controlled by using an aluminum jig with a beveled surface inserted under the substrate during RIE (reactive ion etching) of InP/InGaAsP. The offchip coupler is fabricated simultaneously with a high-mesa wa...
متن کاملIntegrated-optical directional coupler biosensor.
We present measurements of biomolecular binding reactions, using a new type of integrated-optical biosensor based on a planar directional coupler structure. The device is fabricated by Ag(+) - Na(+) ion exchange in glass, and definition of the sensing region is achieved by use of transparent fluoropolymer isolation layers formed by thermal evaporation. The suitability of the sensor for applicat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Electronics Letters
سال: 2023
ISSN: ['0013-5194', '1350-911X']
DOI: https://doi.org/10.1049/ell2.12754