A thin-film InGaAs/GaAs edge-emitting single-quantum-well laser has been integrated with a tapered multimode SU-8 waveguide onto an Si substrate. The SU-8 waveguide is passively aligned to the laser using mask-based photolithography, mimicking electrical interconnection in Si complementary metal-oxide semiconductor, and overlaps one facet of the thin-film laser for coupling power from the laser to the waveguide. Injected threshold current densities of 260A/cm(2) are measured with the reduced reflectivity of the embedded laser facet while improving single mode coupling efficiency, which is theoretically simulated to be 77%.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OL.35.003474 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Silica-Polymer Heterogeneous Hybrid Integrated Mach-Zehnder Interferometer Optical Waveguide Temperature Sensor.
Polymers (Basel)
August 2024
College of Integrated Circuits and Optoelectronic Chips, Shenzhen Technology University, Shenzhen 518118, China.
In this paper, a temperature sensor based on a polymer-silica heterogeneous integrated Mach-Zehnder interferometer (MZI) structure is proposed. The MZI structure consists of a polymer waveguide arm and a doped silica waveguide arm. Due to the opposite thermal optical coefficients of polymers and silica, the hybrid integrated MZI structure enhances the temperature sensing characteristics.
View Article and Find Full Text PDFElectrowriting of SU-8 Microfibers.
Polymers (Basel)
June 2024
Laboratory of Applied Photonics Devices, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland.
As microfiber-based additive manufacturing (AM) technologies, melt electrowriting (MEW) and solution electrowriting (SEW) have demonstrated efficacy with more biomedically relevant materials. By processing SU-8 resin using MEW and SEW techniques, a material with substantially different mechanical, thermal, and optical properties than that typically processed is introduced. SU-8 polymer is temperature sensitive and requires the devising of a specific heating protocol to be properly processed.
View Article and Find Full Text PDFTheoretical and Experimental Analysis of Single-Arm Bimodal Plasmo-Photonic Refractive Index Sensors.
Sensors (Basel)
June 2024
Department of Informatics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
In this paper, we study both theoretically and experimentally the sensitivity of bimodal interferometric sensors where interference occurs between two plasmonic modes with different properties propagating in the same physical waveguide. In contrast to the well-known Mach-Zehnder interferometric (MZI) sensor, we show for the first time that the sensitivity of the bimodal sensor is independent of the sensing area length. This is validated by applying the theory to an integrated plasmo-photonic bimodal sensor that comprises an aluminum (Al) plasmonic stripe waveguide co-integrated between two accessible SU-8 photonic waveguides.
View Article and Find Full Text PDFOptical Amplification at 1.5 µm in Er Coordination Polymer-Doped Waveguides Based on Intramolecular Energy Transfer.
Adv Sci (Weinh)
August 2024
Fujian Key Laboratory of Ultrafast Laser Technology and Applications, School of Electronic Science and Engineering (National Model Microelectronics College), Xiamen University, Xiamen, 361005, China.
9,9-bis (diphenylphosphorylphenyl) fluorene (FDPO) and dibenzotetrathienoacene (DBTTA), are synthesized as the neutral and anionic ligands, respectively, to prepare the Er coordination polymer [Er(DBTTA)(FDPO)]. Based on the intramolecular energy transfer, optical gains at 1.5 µm are demonstrated in [Er(DBTTA)(FDPO)]-doped polymer waveguides under excitations of low-power light-emitting diodes (LEDs) instead of laser pumping.
View Article and Find Full Text PDFWe propose a strip loaded amplifier employing SU-8 as the loaded waveguide and nanoparticles (NPs)-polymethyl methacrylate (PMMA) as the cladding layer. By leveraging the undoped SU-8 loaded waveguide, the polymer waveguide amplifier accomplished remarkably low transmission losses, reaching as low as 1.8 dB/cm at 1530 nm.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!