40 GHz 'optical sampler' provides advanced building block for emerging optical networking architectures
27 July 2005
Opto-Electronics
The Centre for Integrated Photonics (CIP) has released a novel component that provides a versatile platform for optical networks employing advanced attributes such as return-to-zero data modulation, pulse shaping, and optical time division multiplexing.
Providing a sampling function capable of operating at rates up to 40 GHz in the 1550 nm waveband, the indium-phosphide (InP) device can generate temporal windows of less than 5 ps duration with a low polarisation loss, and fine control over both window shape and frequency. This offers a compact and much more versatile alternative to conventional component options.
Based on an electro-absorption modulator (EAM), the device (40G-PS-EAM-1550) can be used in a wide variety of optical applications. Many current optical network development projects are investigating new architectural concepts including the use of return-to-zero (RZ) data modulation. Here, a simple combination of a low-cost continuous wave laser and CIP's new device can provide narrow RZ pulse trains at rates up to 40 GHz.
The component is also ideal for high-speed optical analysis, for dynamic performance monitoring of network signal quality.
Another emerging technique for network development is the use of OTDM (optical time division multiplexing). By using multiple 40G-PS-EAM-1550 devices with a simple passive splitter and delay line arrangement, an elegant and cost-effective solution for implementing the full demultiplexing function required at the end of an OTDM link is provided.
Among the major performance characteristics of the 40G-PS-EAM-1550 device for 1550 nm applications is the ability to generate temporal optical sampling windows with a FWHM (full wave half maximum) duration of less than 5 ps, a polarisation dependent loss of typically 0,7 dB, and a modulation depth of 28 dB typical.
For more information contact CIP, [email protected]
Further reading:
Mouser broadens its LED lineup
Opto-Electronics
Mouser has broadened its LED lineup with diverse solutions designed to support lighting, medical, and smart home applications.
Read more...
High-quality optoelectronics components
Opto-Electronics
LEDs make up the bulk of Lite-On’s product range, and all popular types are manufactured from the ubiquitous round LEDs designed for through-hole mounting to state-of-the-art structures, integrated with programmable control systems.
Read more...
NTC thermistors for laser diode temperature measurement
Electrocomp
Opto-Electronics
These bondable NTC thermistors can be mounted with Au wire bonding inside the package for highly accurate temperature detection of laser diodes used for optical communication.
Read more...
Touch screen enables wise data visualisation
Rugged Interconnect Technologies
Opto-Electronics
ADLINK offers comprehensive industrial-grade touch monitors and smart panels with in-house value-added customisation.
Read more...
Upgraded GUIs on STM32 microcontrollers
Altron Arrow
Opto-Electronics
TouchGFX has now been upgraded to version 4.22, which sees many new features to aid developers with their user experience.
Read more...
Ultrabright chip LEDs
Avnet Abacus
Opto-Electronics
Vishay’s range of high-reliability ultrabright chip LEDs feature a tiny footprint with excellent efficiency, and are available in two sizes, SMD 0603 and 0402.
Read more...
Efficient industrial LED lighting systems
Radél
Opto-Electronics
icotek produces a range of smart lighting solutions for control panels, machinery and server racks, to provide effective lighting in various applications.
Read more...
LIDAR filters
Editor's Choice Opto-Electronics
LIDAR filters must be designed with the specific application and sensor type in mind to maximise signal-to-noise ratio.
Read more...
New UHF RFID increases picking efficiency
Brady Corporation
Opto-Electronics
Brady’s new LED UHF RFID label and reader solution is optimised to increase picking efficiency, as it is now possible to pinpoint the location of assets with greater accuracy.
Read more...
Battle germs with UV-C LEDs
CST Electronics
Opto-Electronics
LITEON provides compact LED solutions for ultraviolet-C applications that can battle germs and viruses by deactivating the reproduction process of microorganisms.
Read more...
printer friendly version