Abstract
A new type of superluminescent diode (SLD) with a tapered waveguide in the absorbing region is proposed. This SLD structure quite suitably monitors output power, as it emits monitor light from the rear facet that is about one-tenth the output power from the front one. Device parameters have been determined by beam propagation methods. A 1.3μm SLD fabricated by liquid phase epitaxy (LPE) with an absorbing waveguide 200μm long and with a 6.5° tapered angle can emit output power of 13.5 mW from the front facet at a 200 mA driving current without lasing.
Original language | English |
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Pages (from-to) | 1445-1446 |
Number of pages | 2 |
Journal | Electronics Letters |
Volume | 26 |
Issue number | 18 |
DOIs | |
Publication status | Published - 1990 Jan |
Externally published | Yes |
Keywords
- Luminescent devices
- Semiconductor devices and materials
- Waveguides
ASJC Scopus subject areas
- Electrical and Electronic Engineering