Abstract
An integrated parabolic lens capable of introducing a diverging effect to the optical mode propagating within the cavity of a tapered laser is proposed and demonstrated. This idea allows broader high-power beams to be generated by shorter cavities. Diverging lenses with etch depths of 0.13 and 0.27 μm are implemented, with 12 (9.5%) and 16.8 μm(13.3%) overall broadening of the near-fields widths measured at 1/e2 intensity. The peak output power as well as the threshold current is found to increase following the lens etching process, confirming the beneficial broadening effect introduced by the diverging lens.
| Original language | English |
|---|---|
| Pages (from-to) | 203-205 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 19 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 15 Feb 2007 |
Keywords
- Beam quality
- Catastrophic optical mirror damage (COMD)
- Diverging lens
- Gaussian beam
- High-brightness lasers
- High-power lasers
- Integrated lens
- M factor
- Mode expansion
- Tapered lasers
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
Cite this
A novel intracavity lens design for compact and high efficiency tapered laser diode. / Lau, F. K.; Tee, C. W.; Penty, R. V.; White, I. H.; Michel, N.; Krakowski, M.
In: IEEE Photonics Technology Letters, Vol. 19, No. 4, 15.02.2007, p. 203-205.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A novel intracavity lens design for compact and high efficiency tapered laser diode
AU - Lau, F. K.
AU - Tee, C. W.
AU - Penty, R. V.
AU - White, I. H.
AU - Michel, N.
AU - Krakowski, M.
PY - 2007/2/15
Y1 - 2007/2/15
N2 - An integrated parabolic lens capable of introducing a diverging effect to the optical mode propagating within the cavity of a tapered laser is proposed and demonstrated. This idea allows broader high-power beams to be generated by shorter cavities. Diverging lenses with etch depths of 0.13 and 0.27 μm are implemented, with 12 (9.5%) and 16.8 μm(13.3%) overall broadening of the near-fields widths measured at 1/e2 intensity. The peak output power as well as the threshold current is found to increase following the lens etching process, confirming the beneficial broadening effect introduced by the diverging lens.
AB - An integrated parabolic lens capable of introducing a diverging effect to the optical mode propagating within the cavity of a tapered laser is proposed and demonstrated. This idea allows broader high-power beams to be generated by shorter cavities. Diverging lenses with etch depths of 0.13 and 0.27 μm are implemented, with 12 (9.5%) and 16.8 μm(13.3%) overall broadening of the near-fields widths measured at 1/e2 intensity. The peak output power as well as the threshold current is found to increase following the lens etching process, confirming the beneficial broadening effect introduced by the diverging lens.
KW - Beam quality
KW - Catastrophic optical mirror damage (COMD)
KW - Diverging lens
KW - Gaussian beam
KW - High-brightness lasers
KW - High-power lasers
KW - Integrated lens
KW - M factor
KW - Mode expansion
KW - Tapered lasers
UR - http://www.scopus.com/inward/record.url?scp=77955207354&partnerID=8YFLogxK
U2 - 10.1109/LPT.2006.890105
DO - 10.1109/LPT.2006.890105
M3 - Article
AN - SCOPUS:77955207354
VL - 19
SP - 203
EP - 205
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
SN - 1041-1135
IS - 4
ER -