Detail publikace

Optoelectronic noise and photocurrent measurement on GaAs/AlGaAs laser diode with single quantum well

GRMELA, L. DOBIS, P. BRÜSTLOVÁ, J. TOMÁNEK, P.

Originální název

Optoelectronic noise and photocurrent measurement on GaAs/AlGaAs laser diode with single quantum well

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The current progress in optomechatronic applications needs more efficient devices and components with higher reliability, operational lifetime, reduced cost and dimensions as laser diodes, fast photodetectors, modulators. The laser is one key technology in highly industrialized economy. To understand modern efficient laser diode (LD) structures and evaluate their performance, an electrical and optical characterization is necessary. Therefore, low-frequency electrical and optical fluctuation spectra and their cross-correlation factor have been investigated in GaAs/AlGaAs ridge waveguide laser diode with an active region containing a single quantum well layer. It is shown that in the lasing region the intensive Lorentzian-type electrical and optical noises with negative cross-correlation factor are characteristic. This noise is due to charge carrier recombination processes in the interfaces between the active layer and the neighboring layers. To verify it, a complementary insight into the same laser diode structure provided by near-field induced photocurrent technique with 100nm spatial resolution, is also discussed.

Klíčová slova

low-frequency noise, electrical noise, optical noise, optical nanometrology, scanning near-field optical microscopy, diagnostics, near-field induced photocurrent

Autoři

GRMELA, L.; DOBIS, P.; BRÜSTLOVÁ, J.; TOMÁNEK, P.

Rok RIV

2007

Vydáno

15. 3. 2007

Nakladatel

Taylor&Francis

ISSN

1559-9612

Periodikum

International Journal of Optomechatronics

Ročník

1

Číslo

1

Stát

Spojené státy americké

Strany od

73

Strany do

80

Strany počet

8

BibTex

@article{BUT44664,
  author="Lubomír {Grmela} and Pavel {Dobis} and Jitka {Brüstlová} and Pavel {Tománek}",
  title="Optoelectronic noise and photocurrent measurement on GaAs/AlGaAs laser diode with single quantum well",
  journal="International Journal of Optomechatronics",
  year="2007",
  volume="1",
  number="1",
  pages="73--80",
  issn="1559-9612"
}