Optoelectronics

Optoelectronics play a critical role in the electronics industry. At one end, it provides the isolation needed in industrial systems. At the other, optoelectronics enables the transmission of data around the world using fibre optic cables.

In this section, New Electronics keeps visitors up to date with developments in the optoelectronics market, covering topics ranging from optocouplers to lasers to infrared emitters.

Voice in the wilderness?

As IP networks take on more voice traffic, the rise of IP telephony should have a profound effect on technology developments. By Jim Chalmers.

A tangled web

A web of multi source agreements threaten to engulf 10Gbit transceiver modules. By John Walko.

Let’s get physical

As the communications industry – whether wired or wireless – strives towards ever higher data rates, the role of physical layer (PHY) devices is becoming increasingly important and, in some instances, contentious. It’s not surprising that the range of technologies, architectures and design options being offered is becoming increasingly complex. With Gigabit Ethernet and 10Gbit Ethernet gaining momentum, most competition will be played out in these sectors. PHYs basically provide access to the Media Access Control (MAC) layer through a management interface. If you consider high data rate optical links, such as Gigabit Ethernet, the PHY chip is really a mux/demux combination that acts as a liaison between optics and electronics, such as the framer.

Phone key

1, 22 Sony Ericsson W810i 2006 2 Samsung SGH-R210S 2001 3 Sagem mc930 1999 4, 26 Philips Savvy 1999 5 Hyundai HGC300E 6, 25 Nokia RinGo 1997 7 unidentified 8 Motorola cd920 1998 9, 32 Bosch GSM509 2002 10 NEC DB2000 1999 11, 39, 40 Panasonic EB-G450 1997 12 Motorola v2288 2000 13 Philips Savvy Vogue 2001 14 Sony Ericsson P910i 2004 15, 34 Nokia 3510 2002 16 Samsung SGH600 1999 17 Ericsson T18S 1999 18 Kyocera K112 2003 19 NEC TR5E1000-9A 1988 20 Philips Fizz 1996 21 Apple iPhone 2009 23 Nokia 6301 2007 24 Sony Ericsson P990i 2005 27 Siemens C10 1998 28 Nortel M800 29 Auna Gigaset DECT phone 30 Alcatel OT Pro (issued by Barclaycard, in association with Cellnet) 1998 31 Motorola c520 1998 33 Philips Genie 1999 35 Motorola Micro TAC Classic 1989 36 Motorola Executive Phone 2 1992 37 Motorola mr201 38 Motorola mr30 1995

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