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oe1(光电查) - 科学论文

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  • 16-channel dual-tuning wavelength division multiplexer/demultiplexer

    摘要： A 16-channel dual tuning wavelength division multiplexer/demultiplexer based on silicon on insulator platform is demonstrated, which is both peak wavelength tunable and output optical power tunable. The wavelength division multiplexer/demultiplexer consists of an arrayed waveguide grating for wavelength division multiplexing/demultiplexing, a heater for peak wavelength tuning and a variable optical attenuator based on p–i–n carrier-injection structure for optical power tuning. The experimental results show that the insertion loss on chip of the device is 3.7 dB–5.7 dB and the crosstalk is 7.5 dB–9 dB. For the tunability of the peak wavelength, 1.058-nm wavelength tunability is achieved with 271.2-mW power consumption, and the average modulation efficiency is 3.9244 nm/W; for the tunability of the optical power, the optical power equalization is achieved in all 16 channels, 20-dB attenuation is achieved with 144.07-mW power consumption, and the raise/fall time of VOA is 35 ns/42 ns.

    关键词： arrayed waveguide grating,variable optical attenuator,silicon photonics

    更新于2025-09-23 15:22:29

  • AIP Conference Proceedings [AIP Publishing THE 2ND INTERNATIONAL CONFERENCE ON APPLIED PHOTONICS AND ELECTRONICS 2019 (InCAPE 2019) - Putrajaya, Malaysia (22 August 2019)] THE 2ND INTERNATIONAL CONFERENCE ON APPLIED PHOTONICS AND ELECTRONICS 2019 (InCAPE 2019) - Design of arrayed waveguide grating (AWG) demultiplexer based PMMA for narrow channel spacing

    摘要： Arrayed Waveguide Grating (AWG) based PMMA polymer that functioning as multiplexer/demultiplexer (mux/de-mux) having good potential in WDM system and interferometer optical sensor. Besides, AWG is suitable for larger count optical signals and good filter response devices. AWG demultiplexer based polymer was simulated using Beam Propagation Method (BPM) under TE mode with 1550 nm central wavelength. This work explores the performance of polymer-based AWG with straight waveguide structure that capable to produce 16-channels AWG device for 100 GHz (0.8 nm) channel spacing. The 16-channels AWG based polymer produces low insertion loss of 3.430 dB and low crosstalk of -24.763 dB. The central wavelength for each output port gives almost similar values with the standard ITU-T DWDM wavelength grid with the smallest difference of 0.5 nm. This proposed device also capable to solve the demand on higher channel capacity especially to support internet usage and the needs of the best communication system.

    关键词： AWG,PMMA,narrow channel spacing,WDM system,Arrayed Waveguide Grating,demultiplexer

    更新于2025-09-19 17:13:59

  • Reflective arrayed waveguide grating with parallel arms using one-dimensional photonic crystal reflector

    摘要： The authors demonstrate reflective arrayed waveguide grating designed for silicon waveguide. The phase shift sections of the arrayed waveguide are placed in parallel configuration. This enables the construction of compact device. The one-dimensional photonic crystal is used as the reflector at the end of the arm. Wide reflection bandwidth is obtained.

    关键词： silicon waveguide,compact device,one-dimensional photonic crystal,wavelength division multiplexing,reflective arrayed waveguide grating

    更新于2025-09-16 10:30:52

  • [IEEE 2019 IEEE 16th International Conference on Group IV Photonics (GFP) - Singapore, Singapore (2019.8.28-2019.8.30)] 2019 IEEE 16th International Conference on Group IV Photonics (GFP) - High Resolution Silicon Nitride Spectrometer by Integrating Micro-Rings and Arrayed Waveguide Gratings in Tandem

    摘要： We demonstrate a high-resolution spectrometer on silicon nitride by integrating micro-ring resonators and arrayed waveguide gratings (AWG) in tandem. The integrated spectrometer has an overall size of 1.4*1.1 mm2 and spectral resolution of 0.75nm within the 75nm free spectral range of the secondary AWG.

    关键词： Very near infrared,Micro-ring resonator,High-resolution,Arrayed waveguide grating

    更新于2025-09-16 10:30:52

  • [IEEE 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Huangshan, China (2019.8.5-2019.8.8)] 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Large-scale arrayed waveguide grating router for T-band communication

    摘要： bandwidth was more than 100 nm, and whole T-band can be covered by three different gain chips. The gain chip has high power output up to 190 mW with an injection current of 800 mA as shown in Fig. 3. It can be operated more than 95 ℃. The estimated life is longer than 106 hours. SOA modules were fabricated using QD gain chips. The T-band (1000-1260 nm), which offers more than 60 THz worth of bandwidth and wider than C- and L-band combined. The large scale photonic router using 3-stage arrayed-waveguide grating for T-band and O-band is configured.

    关键词： quantum dot laser,optical communication,arrayed waveguide grating,T-band,AWGR

    更新于2025-09-16 10:30:52

  • S/S+-Band Tunable Dual-wavelength Thulium doped Fluoride Fiber Laser

    摘要： A simple S/S+-band dual-wavelength thulium doped fluoride fiber laser (DWFL) with tunable channel spacing is demonstrated. The system utilizes a 24 channel arrayed waveguide grating to control the spacing between the two lasing wavelengths. The widest spacing that can obtained between two lasing wavelengths is 17.49 nm, while the narrowest is 0.75 nm. The cavity loss in the DWFL is controlled using two variable optical attenuators to equalize the power of the two lasing wavelengths. The DWFL has a maximum signal to noise ratio (SNR) of approximately 49.60 dB and good stability over long periods of operation, with only minor SNR fluctuations of less than 5.00 dB observed. The DWFL’s output also has side-mode suppression ratio (SMSR) of between 0.12 dB and 1.56 dB, indicating that there is little to no suppression of one wavelength over another, as well as a balanced power output that is highly desirable when used as reference or signal sources.

    关键词： S/S+-band,arrayed waveguide grating,Dual-wavelength,Thulium-doped fluoride fiber

    更新于2025-09-12 10:27:22

  • Ultracompact 40-Channel Arrayed Waveguide Grating on Silicon Nitride Platform at 860 nm

    摘要： Arrayed waveguide gratings (AWG) have been widely used as wavelength multiplexers and demultiplexers in dense wavelength division multiplexing communications. In this letter, we describe a highly compact 40-channel AWG fabricated on the silicon nitride platform for operation with a center wavelength near 860 nm for use in spectral domain optical coherence tomography. The total footprint of the AWG is 910 μm × 680 μm. The transmission spectrum of the fabricated device was measured. The AWG had a channel spacing of 1.5 nm and optical spectral range of 60 nm, in accord with the design. The measured insertion loss was 1.3 dB for the central channels and 1.8 dB for the outmost channels. The inter-channel crosstalk varied from 17.2 dB to 19.7 dB for the central 20 channels.

    关键词： Arrayed waveguide grating,ultracompact,very near infrared,silicon nitride platform

    更新于2025-09-11 14:15:04

  • [IEEE 2018 IEEE Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP) - Portland, OR, USA (2018.11.13-2018.11.14)] 2018 IEEE Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP) - Analog Photonic Timing Equalization Method for Multi-Channel RF Photonic Links

    摘要： A new photonic timing equalization approach is presented to compensate the group delay among multiple signals in an analog photonic link. The results show the group delay variation across multiple RF photonic channels can be significantly compensated with 96.2% reduction after the equalization.

    关键词： Phase conjugation,Analog photonic link,Arrayed waveguide grating(AWG),Group delay

    更新于2025-09-09 09:28:46

  • Interleaved Silicon Nitride AWG Spectrometers

    摘要： Interleaved arrayed waveguide gratings (AWGs) have a great potential in providing large channel counts and narrower channel spacings for many applications, including optical communication, spectroscopy, and imaging. Here, a 75-channel silicon nitride based interleaved AWG was experimentally demonstrated. The design is comprised of a 3-channel primary AWG with 1 nm of resolution and three 25-channel secondary AWGs each with 3 nm of resolution. The final device has a spectral resolution of 1 nm over 75 nm bandwidth centered at 1550 nm. Its performance is compared with a conventional AWG spectrometer with 75 nm of bandwidth and 1 nm of resolution. The interleaved AWG demultiplexer showed lower crosstalk and better uniformity in addition to being two times smaller than the conventional design.

    关键词： interleaver,C-band,arrayed waveguide grating,silicon nitride,demultiplexer,Integrated optics

    更新于2025-09-09 09:28:46