Tunable lasers The tunable laser could be set to any desired wavelength either in the factory or in the field by a software command. The performance parameters.

Slides:

Advertisements

Similar presentations

High power (130 mW) 40 GHz 1.55 μm mode-locked DBR lasers with integrated optical amplifiers J. Akbar, L. Hou, M. Haji,, M. J. Strain, P. Stolarz, J. H.

Advertisements

1 T. Kataoka, S. E. Day, D. R. Selviah, A. Fernández Department of Electronic and Electrical Engineering University College London, U.K. Polarization-Insensitive.

1 Tunable Lasers in Optical Communications By James Harper Instructor: P. Lui Department of Electrical Engineering University at Buffalo State University.

2003/04/071 Characteristic of 850-nm InGaAs/AlGaAs Vertical-Cavity Surface-Emitting Lasers Master’s thesis of Yuni Chang Speaker:Han-Yi Chu National Changhua.

CAVITY RING DOWN SPECTROSCOPY

Shaping the color Optical property of photonic crystals Shine.

Semiconductor Optical Sources

Mode locked laser array monolithically integrated with SOA and EA modulator L. Hou, M. Haji, A. E. Kelly, J. M. Arnold, A. C. Bryce.

High Speed Circuits & Systems Laboratory Joungwook Moon

Reflection by PEC: Total Fields. Perpendicular Polarization Reflection by PEC: Total Fields PEC.

Optical Fiber Communications

OPTICAL COMPONENTS 9/20/11. Applications See notes.

Industrial Affiliates Workshop, March 2004 Planar Ion-Exchanged Glass Waveguide Devices Seppo Honkanen, Brian West and Sanna Yliniemi Optical Sciences.

5. Lasers. Introduction to Lasers Laser Acupuncture, Laser Scalpel and Laser W/R Head.

Modern Communication Systems Optical Fibre Communication Systems

Slow light in photonic crystal waveguides Nikolay Primerov.

Integrated Optic Components  Passive: Requires no input power, like directional couplers, beam splitters, isolators, filters, lenses and prisms  Active:

Fiber-Optic Communications

Sharp resonance of multimode periodic waveguide open resonator defined in SOI Ph.D student: Nikolay Piskunov Supervisor: Henri Benisty Institut d’Optique.

Lecture 4 Optical fibers Last Lecture Fiber modes Fiber Losses Dispersion in single-mode fibers Dispersion induced limitations Dispersion management.

Fiber-Optic Communications James N. Downing. Chapter 5 Optical Sources and Transmitters.

Ch 6: Optical Sources Variety of sources Variety of sources LS considerations: LS considerations: Wavelength Wavelength  Output power Output power Modulation.

Diode laser The diode or semiconductor laser Diode lasers are extremely compact (0.3×0.2×0.1 mm), high efficiency (up to 40%), tuneable lasers, which have.

NEWTON: NEw Widely Tunable lasers for Optical Networks Main Objective: To develop and experimentally investigate new types of widely tunable laser diodes.

Free-Space MEMS Tunable Optical Filter in (110) Silicon

Simulation of InGaN violet and ultraviolet multiple-quantum-well laser diodes Sheng-Horng Yen, Bo-Jean Chen, and Yen-Kuang Kuo* *Department of Physics,

Fiber Optic Light Sources

Mina Spasojevic  Power is coupled in between counter propagating waves  The response is determined based on the grating.

Fiber Bragg Gratings.

Photonic Devices - Couplers Optical fibre couplers A basic photonic device used to split or combine light to or from different fibres. A building block.

A Company Selling Technology and not just a Product.

Chapter 4 Photonic Sources.

Lecture 18 Chapter XI Propagation and Coupling of Modes in Optical Dielectric Waveguides – Periodic Waveguides Highlights (a) Periodic (corrugated) WG.

INTRODUCTION  Tunable lasers are different to traditional lasers because they can continuously change their emission wavelength, or color, in a given.

Lecture 6. Polarization splitter based Filters Acoustooptic Tunable Filters.

1ControlNumber p-n junctions: forward bias Effectively injecting electrons into n-type, holes into p-type –Electrons repelled from contact with battery,

Components for WDM Networks

1 Sources and detectors of light 1)Revision: semiconductors 2)Light emitting diodes (LED) 3)Lasers 4)Photodiodes for integrated optics and optical communications.

1.Stable radiation source 2.Wavelength selector 3.Transparent sample holder: cells/curvettes made of suitable material (Table 7- 2) 4.Radiation detector.

Fig. 10-1: Transmission windows

Waveguide Corners E plane Corner H-plane corner 1.

0 Frequency Gain 1/R 1 R 2 R 3 0 Frequency Intensity Longitudinal modes of the cavity c/L G 0 ( ) Case of homogeneous broadening R2R2 R3R3 R1R1 G 0 ( )

Subject Name: Optical Fiber Communication Subject Code: 10EC72 Prepared By: Sreepriya Kurup, Pallavi Adke, Sowmya L(TE) Department: Electronics and Communication.

Date of download: 7/8/2016 Copyright © 2016 SPIE. All rights reserved. (a) Schematic of two parallel identical silicon waveguides with the BCB bonding.

High Power LD, LDA & LDS Speaker: Shiuan-Li Lin Advisor : Sheng-Lung Huang Solid-State Laser Crystal and Device Laboratory.

Lasers in Optical Communications Rogério Nogueira

Courtesy from Significant Technologies Sdn Bhd LIGHT SOURCE & POWER METER/ PASSIVE DEVICES.

Advanced laser and led structures, applications

3PNT – Advanced Laser Structures and Optical Communications (SJS)

Current Channeling – End View, Vertical Section, Not to scale

Polymer Microrings Integrated With Thin Film InGaAs MSM Photodetectors For Sensor-On-A-Chip Applications Sang-Yeon Cho Electrical and Computer Engineering.

GROUP DELAY Group delay per unit length can be defined as:

IV. Laser Diode (LD) or Semiconductor Laser

A course on: Optical wave and wave propagation

Improving Solar Cell Efficiencies through Periodicity

Laboratory of High-Power & Semiconductor Lasers

1.3µm Optical Interconnect on Silicon: A Monolithic III-Nitride Nanowire Array Photonic Integrated Circuit MRSEC Program; DMR A feasible.

Surface emitting diode laser

S OPTICAL COMMUNICATIONS AND INSTRUMENTS

Optical Fiber Communications

Photon Physics ‘08/’09 Thijs Besseling

TASK 2 InP Traveling Wave Microresonator Filters

Monolithically Integrated Mach-Zehnder Interferometer Wavelength Converter and Widely-Tunable Laser in InP Milan L. Mašanović, Vikrant Lal, Jonathon S.

Monolithically Integrated Mach-Zehnder Interferometer Wavelength Converter and Widely-Tunable Laser in InP Milan L. Mašanović, Vikrant Lal, Jonathon S.

Broadband Lateral Tapered Structures for Improved Bandwidth and Loss Characteristics for All-Optical Wavelength Converters Xuejin Yan, Joe Summers, Wei.

Broadband Lateral Tapered Structures for Improved Bandwidth and Loss Characteristics for All-Optical Wavelength Converters Xuejin Yan, Joe Summers, Wei.

Monolithically Integrated Mach-Zehnder Interferometer Wavelength Converter and Widely-Tunable Laser in InP Milan L. Mašanović, Vikrant Lal, Jonathon S.

Broadband Lateral Tapered Structures for Improved Bandwidth and Loss Characteristics for All-Optical Wavelength Converters Xuejin Yan, Joe Summers, Wei.

TASK 1 Monolithically Integrated Mach-Zehnder Interferometer Wavelength Converter and Widely-Tunable Laser in InP Milan L. Mašanović, Vikrant Lal, Jonathon.

Wave front and energy front

Presentation transcript:

Tunable lasers The tunable laser could be set to any desired wavelength either in the factory or in the field by a software command. The performance parameters are:  Power  Spurious mode suppression  Wavelength stability  Life time

Development of monolithic tunable diode lasers Significant effort to develop DBR laser marks the develop ment of todays monolithic diode lasers. DBR laser incorporates separate active and passive grating reflector regions.

Some works included vertically integrated twin guide structures to separate active and passive DBR regions, but it has inherent limitations. Earlier works were not inteneted for wide tunability but to develop DBR lasers that could be integrated with passive waveguides for monolithic coupling to other integrated optical components.  First concentrated effort to develop monolithic tunable lasers was carried out at Bell Labs. Two and three section tunable DBR laser It provides a tuning range of 5 to 10 nm.

New application and the invention of internet demanded more band width and this led to the development of VCSELs and widely tunable lasers. Various configurations employed for thw development of widely tunable lasers are;  Configurations employing two multielement mirrors and vernier tuning enhancement structure  Y-branch configurations SGDBR laser It is the first monolithic device to tune over a wavelength region of 30nm or more.

The laser operates at a wave length where a reflection peak from each mirror coincide. Since the peak spacing are different only one pair of peaks can line up at a time. The peaks are spaced by: