Laser Diode to Single-mode Circular Core Dispersion-shifted/Dispersion-flattened Fiber Excitation via Hemispherical Microlens on the Tip of the Fiber: Evaluation of Coupling Efficiency by ABCD Matrix Formalism
Abstract
Employing the prescribed ABCD matrix for refraction of paraxial rays by hemispherical lens, we derive analytical expression of efficiency of coupling of a laser diode to single-mode circular core dispersion-shifted as well as dispersion-flattened fiber via hemispherical microlens on the fiber tip. For the sake of simplicity, we assume Gaussian field distribution for both the source and the fiber. In our analysis, we also take care of limited aperture allowed by the hemispherical lens. The lens refracted spot size of the source, which is taken to be Gaussian, is matched with Petermann II spot size of the fiber for maximum coupling efficiency, since deviation from Gaussian nature of field for such fiber as per the recent design has to be taken care of. We carry out our study for two different wavelengths namely 1.3 μm and 1.5 μm. Our formalism is simple but accurate and executable easily requiring little computations. The results obtained by such user friendly method should benefit the designer of such coupling device in the field of optimum launch optics.
©2014 by Walter de Gruyter Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Amplifiers
- Transmission Properties of Passive Optical Network using Hybrid Raman Amplifiers
- Devices
- Design and Simulation of Four-channel Wavelength Demultiplexer Based on Photonic Crystal Circular Ring Resonators for Optical Communications
- Fibers
- Simple Method for Prediction of Far-Field Patterns of Single-mode Dispersion-shifted and Dispersion-flattened Fibers
- Networks
- In-band Bidirectional Optical Network Based on OCDMA Technique
- DAART: Delay-aware Adaptive Round Time MAC Protocol to Improve Throughput in Light-trail Networks
- Performance Analysis of Hybrid OCDMA/WDM System for Metro Area Network
- Systems
- Impact of Various Weather Condition on the Performance of Free Space Optical Communication System
- Performance Comparison of OFDM based FSO Communication System under Log-normal and Gamma-Gamma Distribution
- Phase Noise Influence in Coherent Optical DnPSK Systems with DSP based Dispersion Compensation
- 10 Gbit/s Bidirectional Long Reach WDM-PON using Externally Modulated Laser for Downlink and RSOA for Uplink with Dispersion Compensating FBG
- Novel Colorless WDM-PON Featuring Optional Broadcast Service and High Reliability
- Theory
- Laser Diode to Single-mode Circular Core Dispersion-shifted/Dispersion-flattened Fiber Excitation via Hemispherical Microlens on the Tip of the Fiber: Evaluation of Coupling Efficiency by ABCD Matrix Formalism
Artikel in diesem Heft
- Frontmatter
- Amplifiers
- Transmission Properties of Passive Optical Network using Hybrid Raman Amplifiers
- Devices
- Design and Simulation of Four-channel Wavelength Demultiplexer Based on Photonic Crystal Circular Ring Resonators for Optical Communications
- Fibers
- Simple Method for Prediction of Far-Field Patterns of Single-mode Dispersion-shifted and Dispersion-flattened Fibers
- Networks
- In-band Bidirectional Optical Network Based on OCDMA Technique
- DAART: Delay-aware Adaptive Round Time MAC Protocol to Improve Throughput in Light-trail Networks
- Performance Analysis of Hybrid OCDMA/WDM System for Metro Area Network
- Systems
- Impact of Various Weather Condition on the Performance of Free Space Optical Communication System
- Performance Comparison of OFDM based FSO Communication System under Log-normal and Gamma-Gamma Distribution
- Phase Noise Influence in Coherent Optical DnPSK Systems with DSP based Dispersion Compensation
- 10 Gbit/s Bidirectional Long Reach WDM-PON using Externally Modulated Laser for Downlink and RSOA for Uplink with Dispersion Compensating FBG
- Novel Colorless WDM-PON Featuring Optional Broadcast Service and High Reliability
- Theory
- Laser Diode to Single-mode Circular Core Dispersion-shifted/Dispersion-flattened Fiber Excitation via Hemispherical Microlens on the Tip of the Fiber: Evaluation of Coupling Efficiency by ABCD Matrix Formalism