Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Chip-Scale Tunable Laser To Enable Bandwidth-On-Demand In Advanced Optical Networks

13.03.2014

Researchers from A*STAR’s Institute of Microelectronics (IME) and Nanyang Technological University (NTU) have demonstrated the smallest wavelength-tunable laser fabricated by microelectromechanical system (MEMS) technology.

Telecommunication providers can deliver bandwidth-on-demand at higher profit margins with the Singapore-developed tunable laser 

Researchers from A*STAR’s Institute of Microelectronics (IME) and Nanyang Technological University (NTU) have demonstrated the smallest wavelength-tunable laser fabricated by microelectromechanical system (MEMS) technology.

The laser features a wide tuning range which enables telecommunications providers to cost-effectively expand system capacity in advanced optical networks to support high data packets at ultra fast speed. By having one laser, instead of several, that can generate light over a range of wavelengths, the network infrastructure is greatly simplified, and inventory and operational costs are dramatically reduced, thus strengthening the capability of telecommunications providers to deliver bandwidth-on-demand services at higher profit margins. 

To keep up with increasing consumer demands for faster internet connectivity and greater network coverage, service providers need to revamp their network architectures. In fibre-optic communications, advanced wavelength division multiplexing (WDM) networks typically rely on single wavelength laser sources, making them expensive, time-intensive, energy-inefficient and logistically impractical for service providers to increase their system capacity. 

On the other hand, commercial tunable lasers require multiple components in their set-up in order to achieve the necessary wide tuning range, thereby contributing to the bulkiness of these lasers and rendering them unsuitable for system integration.

To tackle these challenges, the joint team from IME and NTU has demonstrated an on-chip integrated laser, the smallest reported tunable laser fabricated by MEMS technology that can generate light from 1531.2 nm to 1579.5 nm of the near-infrared region, relevant to optical telecommunications. Compared to MEMS tunable laser based on external cavity design, the new laser significantly improves the coupling efficiency of 50% to more than 75% to offer wide tuning range using processing steps that are more streamlined and amenable to mass production. 

Presented at the prestigious 2013 International Electron Devices Meeting (IEDM) in the USA , the design uses simple packaging and provides ease of fabrication for mass production. This miniature on-chip system can also be readily integrated into high-density photonic circuits to achieve smaller form-factor. These distinct functionalities and highlights make the laser an attractive light source for next generation optical telecommunications, as well as in other spectroscopy applications.

Dr Cai Hong, the IME scientist who is leading the research project, commented, “Our laser exploits the superior light converging ability of the rod lens and parabolic mirror of the 3D micro-coupling system to achieve both wide wavelength tuning range and small form factor. In external cavity tunable lasers, wide tuning range is traditionally at the expense of small form factor.”

Professor Liu Ai Qun, from the School of Electrical and Electronic Engineering, NTU, said: “This new chip is very attractive to communications and biomedical device companies because of its small size and low cost. Our prototype, a 1 cm by 1 cm microchip, is the smallest tunable laser which can be easily manufactured as it is ten times smaller than most commercially available tunable laser devices. The key innovation was that our tunable laser is integrated onto a microchip using MEMs technology, made possible only through NTU’s strong expertise in MEMs, backed by a decade of solid research into single-chip solutions.”

“This breakthrough signifies the successful partnership enjoyed by IME and NTU, leveraging on each other’s strengths which led to the successful design, fabrication, packaging and characterisation of this new chip which is expected to impact industries which require tunable laser technology such as in optical fiber communications,” added Prof. Liu, who is also Programme Director at VALENS, an NTU research centre which focuses on bio-instrumentation, devices and signal processing, and has collaborations with many international industry partners.

Professor Dim-Lee Kwong, Executive Director of IME, said, “The tunable laser is a timely solution to address a key technological hurdle that is holding back the outreach of affordable, dynamic and versatile optical network services to consumers. We expect this breakthrough to augment IME’s capabilities in silicon photonics to enable product developers and relevant industries to get a head start in the optical networking space.”

Media Contact:
Dr Shin-Miin SONG
Research Publicity, Institute of Microelectronics A*STAR
DID: (65) 6770-5317
Email: songsm@ime.a-star.edu.sg


 About Institute of Microelectronics (IME)

The Institute of Microelectronics (IME) is a research institute of the Science and Engineering Research Council of the Agency for Science, Technology and Research (A*STAR). Positioned to bridge the R&D between academia and industry, IME's mission is to add value to Singapore's semiconductor industry by developing strategic competencies, innovative technologies and intellectual property; enabling enterprises to be technologically competitive; and cultivating a technology talent pool to inject new knowledge to the industry. Its key research areas are in integrated circuits design, advanced packaging, bioelectronics and medical devices, MEMS, nanoelectronics, and photonics. For more information about IME, please visit http://www.ime.a-star.edu.sg

About the Agency for Science, Technology and Research (A*STAR)

The Agency for Science, Technology and Research (A*STAR) is Singapore's lead public sector agency that fosters world-class scientific research and talent to drive economic growth and transform Singapore into a vibrant knowledge-based and innovation driven economy.

In line with its mission-oriented mandate, A*STAR spearheads research and development in fields that are essential to growing Singapore’s manufacturing sector and catalysing new growth industries. A*STAR supports these economic clusters by providing intellectual, human and industrial capital to its partners in industry.

A*STAR oversees 18 biomedical sciences and physical sciences and engineering research entities, located in Biopolis and Fusionopolis, as well as their vicinity. These two R&D hubs house a bustling and diverse community of local and international research scientists and engineers from A*STAR’s research entities as well as a growing number of corporate laboratories.

Please visit www.a-star.edu.sg

Associated links

Lee Swee Heng | Research SEA
Further information:
http://www.researchsea.com

Further reports about: A*STAR Advanced Chip-Scale IME MEMS Microelectronics Science fabrication lasers processing smallest wavelength

More articles from Information Technology:

nachricht NOAA's GOES-R satellite begins environmental testing
22.05.2015 | NASA/Goddard Space Flight Center

nachricht IoT-based Advanced Automobile Parking Navigation System
20.05.2015 | The Hong Kong Polytechnic University

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Basel Physicists Develop Efficient Method of Signal Transmission from Nanocomponents

Physicists have developed an innovative method that could enable the efficient use of nanocomponents in electronic circuits. To achieve this, they have developed a layout in which a nanocomponent is connected to two electrical conductors, which uncouple the electrical signal in a highly efficient manner. The scientists at the Department of Physics and the Swiss Nanoscience Institute at the University of Basel have published their results in the scientific journal “Nature Communications” together with their colleagues from ETH Zurich.

Electronic components are becoming smaller and smaller. Components measuring just a few nanometers – the size of around ten atoms – are already being produced...

Im Focus: IoT-based Advanced Automobile Parking Navigation System

Development and implementation of an advanced automobile parking navigation platform for parking services

To fulfill the requirements of the industry, PolyU researchers developed the Advanced Automobile Parking Navigation Platform, which includes smart devices,...

Im Focus: First electrical car ferry in the world in operation in Norway now

  • Siemens delivers electric propulsion system and charging stations with lithium-ion batteries charged from hydro power
  • Ferry only uses 150 kilowatt hours (kWh) per route and reduces cost of fuel by 60 percent
  • Milestone on the road to operating emission-free ferries

The world's first electrical car and passenger ferry powered by batteries has entered service in Norway. The ferry only uses 150 kWh per route, which...

Im Focus: Into the ice – RV Polarstern opens the arctic season by setting course for Spitsbergen

On Tuesday, 19 May 2015 the research icebreaker Polarstern will leave its home port in Bremerhaven, setting a course for the Arctic. Led by Dr Ilka Peeken from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) a team of 53 researchers from 11 countries will investigate the effects of climate change in the Arctic, from the surface ice floes down to the seafloor.

RV Polarstern will enter the sea-ice zone north of Spitsbergen. Covering two shallow regions on their way to deeper waters, the scientists on board will focus...

Im Focus: Gel filled with nanosponges cleans up MRSA infections

Nanoengineers at the University of California, San Diego developed a gel filled with toxin-absorbing nanosponges that could lead to an effective treatment for skin and wound infections caused by MRSA (methicillin-resistant Staphylococcus aureus), an antibiotic-resistant bacteria. This "nanosponge-hydrogel" minimized the growth of skin lesions on mice infected with MRSA - without the use of antibiotics. The researchers recently published their findings online in Advanced Materials.

To make the nanosponge-hydrogel, the team mixed nanosponges, which are nanoparticles that absorb dangerous toxins produced by MRSA, E. coli and other...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International symposium: trends in spatial analysis and modelling for a more sustainable land use

20.05.2015 | Event News

15th conference of the International Association of Colloid and Interface Scientists

18.05.2015 | Event News

EHFG 2015: Securing health in Europe. Balancing priorities, sharing responsibilities

12.05.2015 | Event News

 
Latest News

NOAA's GOES-R satellite begins environmental testing

22.05.2015 | Information Technology

Hubble observes one-of-a-kind star nicknamed 'Nasty'

22.05.2015 | Physics and Astronomy

Penn researchers show that mental 'map' and 'compass' are two separate systems

22.05.2015 | Social Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>