Cielo Communications Announces Technology Breakthrough with 12.5 Gbit/sec Shortwave VCSEL in Low Cost Optical Package.Business Editors NOTE TO MEDIA: Photo is available in a Smart News Release(TM) on Business Wire's Home Page at www.businesswire.com BROOMFIELD, Colo.--(BUSINESS WIRE)--March 13, 2000 Packaged In an Optical Subassembly sub·as·sem·bly n. pl. sub·as·sem·blies An assembled unit forming a component to be incorporated into a larger assembly. (OSA 1. OSA - Open Scripting Architecture. 2. OSA - Open System Architecture. ), the 850 nm VCSEL (Vertical Cavity Surface Emitting Laser) Pronounced "vixel." A type of laser diode that emits light from its surface rather than its edge. A VCSEL's circular beam is easy to couple with a fiber, and due to its surface-emission architecture, can be tested Performs Data Transmission of 12.5 Gbit/sec Over 300 Meters of Lucent LazrSPEED(TM) Multi-Mode Fiber See multimode fiber. Cielo Communications today announced technology innovations in the area of laser design and optical packaging. Cielo recently demonstrated an 850nm Vertical Cavity Surface Emitting Laser (VCSEL) operating at 12.5 Gbit/sec on link lengths of greater than 300 meters of Lucent LazrSPEED(TM) multi-mode fiber. The laser supports direct modulation and was packaged in a low-cost optical subassembly (OSA) designed to couple light efficiently into the new fiber. These Cielo innovations offer the promise of simplifying system design and lowering optical interconnect costs for applications requiring bandwidths in excess of 10 Gbit/sec. "These technological achievements are the result of Cielo's commitment to the advancement of VCSEL technology and optical packaging," said Mike Cowley, president and chief executive officer of Cielo Communications. "A 12.5 Gbit/sec shortwave short·wave adj. 1. Having a wavelength of approximately 10 to 200 meters. 2. Capable of receiving or transmitting at wavelengths of approximately 10 to 200 meters: a shortwave radio. VCSEL represents a significant cost reduction compared to current device technology used in opto-electronic solutions at this data rate. Target applications for this technology include optical backplanes in next-generation telecom equipment as well as next generation optical interconnect standards at 10 Gbit/sec and above." The 850nm VCSEL/multimode fiber link combination has historically provided the most cost-effective optical link solution for high bandwidth applications. The demonstration of the Cielo VCSEL in combination with Lucent LazrSPEED(TM) commercial 50um multimode fiber An optical fiber with a larger core than singlemode fiber. It is the most commonly used fiber for short distances such as LANs. Light can enter the core at different angles, making it easier to connect the light source to broader light sources such as LEDs. extends the low-cost serial link to 10 Gbit/sec and above applications. Direct modulation of a laser at this data rate simplifies the optical interface design by eliminating the need for an external optical modulator An optical modulator is a device in which a signal-controlled element is used to modulate a beam of light. See:
Cielo leveraged its expertise in VCSEL design and optical packaging to move the packaging technology from the optical bench to low-cost sub-assembly packaging, producing a complete optical solution for a 12.5Gbit/sec VCSEL coupled to a multi-mode fiber. The OSA package is inexpensive yet stable enough to allow investigation of the long term BER (1) (Basic Encoding Rules) A set of encoding rules for ASN.1 notation, which is a method for defining data structures. See ASN.1. (2) (Bit Error Rate) The average number of bits transmitted in error. See BERT. 1. of 10Gbit/sec VCSEL links. In initial performance tests, Cielo's high-speed 850 nm VCSEL performed data transmission in excess of 10 Gbit/sec over 300 meters of Lucent LazrSPEED(TM) fiber with a Bit Error Rate (BER) of better than 10^-14. Lucent's LazrSPEED solution is the first multi-mode fiber backbone with 10 Gigabit capacity for enterprise networks. Bell Labs researchers designed the LazrSPEED solution to combine cost effective, next generation performance with previous-generation compatibility. About Cielo Cielo Communications is an industry leader in the research, development, manufacturing and deployment of VCSEL technology and optical packaging. The company's commitment to the advancement of VCSEL technology enables the broader adoption of cost-effective, gigabit-per-second fiber optic interconnect solutions in the data communications data communications, application of telecommunications technology to the problem of transmitting data, especially to, from, or between computers. In popular usage, it is said that data communications make it possible for one computer to "talk" with another. and telecommunications marketplace. Cielo Communications is a privately held company privately held company A firm whose shares are held within a relatively small circle of owners and are not traded publicly. backed by several major investor groups including Mayfield Fund, Menlo Ventures, Herb Alpert, HarbourVest, JAFCO, Triumph Capital, J.&W. Seligman and Kindon Capital. Cielo Communications is headquartered at 325 Interlocken Parkway, Building A, Broomfield, CO 80021. Cielo(TM) and the Cielo logo are trademarks of Cielo Communications. All other trademarks and registered trademarks are the property of their respective companies. All rights reserved. Note: A Photo is available at URL URL in full Uniform Resource Locator Address of a resource on the Internet. The resource can be any type of file stored on a server, such as a Web page, a text file, a graphics file, or an application program. : http://www.businesswire.com/cgi-bin/photo.cgi?pw.031300/bb7 |
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