TY - JOUR
AU - Pessa, M
AB - Plastic optical fibres, which have a local attenuation minimum at 650 nm, have attracted much interest for low-cost short-haul communication systems. Red vertical-cavity surface-emitting lasers (VCSELs) and resonant cavity light emitting diodes (RCLEDs) provide a potential solution as light sources for these systems. The operation principle of vertical cavity emitters is based on a Fabry-Perot microcavity, which is formed by placing an optically active region inside of two parallel mirrors. The RCLEDs with emission windows of 84 m in diameter, suitable for standard POFs, exhibit bandwidths up to 200 MHz and light power of 3 mW (cw). The maximum external quantum efficiency is 9.5%. Larger devices, ø500 m in size, launch light power up to 15 mW. Record high transmission rates, 622 Mbit/s, with bit-error-rate <1  ×  10-11 have been demonstrated for a 1-m-long step-index POF. Neither sudden unexpected failure, nor gradual power degradation has been observed after operation under accelerated ageing conditions for about 100 000 device-hours. The alignment tolerance of the coupling efficiency is found to be very large, ±0.5 mm in all directions x-y-z, suggesting that the fibre pigtail packaging is inexpensive. First MBE-grown visible AlGaInP vertical-cavity surface-emitting lasers have been demonstrated. A laser with a 10-m emitting window has external quantum efficiency of 6.65% under continuous wave operation and it is still lasing at 45°C. Furthermore, a threshold current less than 1.0 mA is obtained for a device, which has an 8-m emitting window. 
TI - Vertical Cavity Light Emitters for Plastic Optical Fibers
JF - Physica Scripta
DO - 10.1238/Physica.Topical.101a00119
DA - 2002-01-01
UR - https://www.deepdyve.com/lp/iop-publishing/vertical-cavity-light-emitters-for-plastic-optical-fibers-UrkDIOYEAm
SP - 119
VL - 2002
IS - T101
DP - DeepDyve
ER -