Oki Semiconductor introduces high-bit rate distributed feedback-type laser diodes for fiber communications network.SANTA CLARA, Calif.--(BUSINESS WIRE)--July 3, 1995--A quartet of distributed feedback (DFB DFB acronym for dark, firm, dry meat. Called also dark cutting beef. ) type laser diodes for communications applications from Oki Semiconductor's Electronics Components Group (ECG ECG electrocardiogram. ECG abbr. 1. electrocardiogram 2. electrocardiograph ECG Also called an electrocardiogram, it records the electrical activity of the heart. ) was announced today by Yudhi Trisno, fiber products manager. The devices, targeted for hybrid fiber/coax (HPC (Handheld PC) A palmtop computer that weighs less than one pound and runs specialized versions of popular applications. Microsoft coined the term for its Windows CE operating system, which is an abbreviated version of Windows. See Pocket PC. ) broadband architecture network and trunking applications, are based on multiple quantum wells (MQW) process technology for greater stability. Each Oki diode contains built-in optical isolators to protect the transmission network from external optical feedback. "These products are just the tip of the iceberg tip of the iceberg n. pl. tips of the iceberg A small evident part or aspect of something largely hidden: afraid that these few reported cases of the disease might only be the tip of the iceberg. ," noted Trisno. "As video and telephony converge on the information superhighway, it's apparent that fiber optics will play a much larger role in communications. We expect fiber to find its way into most of the next-generation communication systems, including SONET or SDH (Synchronous Digital Hierarchy) The European counterpart to SONET. See SONET. SDH - Synchronous Digital Hierarchy , ATM for data communications, digital video transport, and telecom local loop access systems." The first group of Oki laser diodes consists of two pigtail A cable that has an appropriate connector on one end and loose wires on the other. It is designed to patch into an existing line or to terminate the ends of a long run. Contrast with patch cord. modules, designated 0L3492L and 0L5492L, with wavelengths of 1310 nm and 1510 nm, respectively. These modules are ideal for transmission rates up to 1.5 Gb/sec. The 0L34921L is targeted for upstream optical transmission services. In hybrid-fiber coax systems, typical minimum threshold current (Ith) is rated at 20 mA and fiber output power (pf) at 1 mW. Oki's coax modules are currently in mass production. Standard delivery is 12 weeks. Price for the coax modules is $2,000 per device in small quantities. Oki's second set of laser diode products consists of thermal electric cooled (TEC) butterfly pigtail modules used in trunking applications. The 1310 nm device is called 0L3104L and the 1550 nm part is 0L5104L. Both are rated for OC-48 (2.5 Gb) transmission at 2 mW of output power which makes them suitable for high-end transport. Other key specifications include Ith of 20 mA and a typical spectral half-width of 0.5 nm measured at 20 dB down. Engineering samples of Oki's OC-48 butterfly modules are now available. Unit price for the OC-48, in small quantities, is $4,000 each. Oki Semiconductor, founded in 1977, offers a broad line of VLSI VLSI: see integrated circuit. (1) (Very Large Scale Integration) Between 100,000 and one million transistors on a chip. See SSI, MSI, LSI and ULSI. (2) (VLSI Technology, Inc., Tempe, AZ, www.semiconductors. devices for use in computers, EDP (Electronic Data Processing) The first name used for the computer field. EDP - Electronic Data Processing , automotive, telecommunications and consumer products. A leader in CMOS memory, gate array and customer-structured array ASICs, the company also markets voice recognition/speech synthesis ICs, microcontrollers and advanced communications devices for wireless and fiber optic applications. Oki is also at the forefront of packaging technology, offering sophisticated options to its customers. Headquartered in Sunnyvale, Calif., Oki has manufacturing facilities in Portland, Ore. All of Oki's manufacturing locations in the United States and Japan are ISO (1) See ISO speed. (2) (International Organization for Standardization, Geneva, Switzerland, www.iso.ch) An organization that sets international standards, founded in 1946. The U.S. member body is ANSI. 9002-certified. Oki Semiconductor is a division of Oki America Inc., a subsidiary of Oki Electric Industry Co. Ltd. -0- Note to Editors: Please direct inquiries to Oki Semiconductor, 785 Mary Avenue, Sunnyvale, Calif. 94086-2909, attn: Lori Higa. For literature, call toll-free 1-800-OKI-6388. CONTACT: Oki Semiconductor, Santa Clara Yudhi Trisno, 408/737-6440 408/720-1918 (fax) or Mathews & Clark Walt Mathews, 408/736-1120 408/736-2523 (fax) |
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