1. Laboratory of High-Power & Semiconductor Lasers
Dr. Yen-Kuang Kuo
Ph.D., E.E., Univ. of Southern California, USA
Associate Professor, Phys. Dept., NCUE
Web site:

2. Capability of this lab …
We experimentally study the optical properties of the semiconductor lasers and light-emitting diodes with the techniques of photoluminescence and electroluminescence.
The equipments in this lab can also be utilized to measure the transmission, absorption, reflection, and Raman spectra.
In addition to the optoelectronic experiments, we also theoretically investigate the optical and material characteristics of the optical semiconductor devices with LASTIP, PICS3D, CASTEP, and MATLAB simulation programs.
2003/11/11
Welcome! Norbert and Zenon ^_^

3. Major facilities in this lab …
Optical tables (2 pieces)
Argon ion laser (6 W Visible Light, 140 mW UV at nm)
Nd:YAG laser (multi-purpose laser)
Monochromator (750 mm, 2 inputs, 2 outputs)
Semiconductor laser/LED current source (PC-controlled)
I-V characteristics measurement equipment
Cooling system for optical measurements (10K ~ 325K)
Wide-spectrum light source (200 nm ~ 1100 nm)
High-sensitivity CCD detector (1340×100 Pixels)
Lock-in Amplifier & Photo-Multiplier Tube
Power meters (3 sets)
Fast oscilloscope (500 MHz Bandwidth, 5 GHz Sampling Rate)
Fast photo-detectors (Response time ~ 1 ns)
LED/OLED (Organic light-emitting diode) intensity meter
Doping concentration measurement equipment (good for GaN)
Frequency tuning elements
Filters …
2003/11/11
Welcome! Norbert and Zenon ^_^

4. Photoluminescence measurements …
l is nm, nm, nm, …
Cooling system
10 K ~ 325 K
Fiber
Control
Chopper
Ar+ laser
Wafer
PMT
Lock-in amplifier
CCD
(Princeton) PC
Light input
Monochromator( ARC SP-750)
2003/11/11
Welcome! Norbert and Zenon ^_^

5. Major software resources …
LASTIP simulation program (Edge-emitting laser, gain, spectra …)
PICS3D simulation program (Vertical-cavity surface-emitting laser (VCSEL), distributed Bragg reflectors (DBR) …)
CASTEP simulation program (band structures, materials properties of semiconductors …)
MATLAB simulation program (High-power lasers, Passive Q-switching performance …)
2003/11/11
Welcome! Norbert and Zenon ^_^

6. Welcome! Norbert and Zenon ^_^
Recent interests …
Investigation of the optical properties of InGaN LD/LED/VCSEL
Investigation of the optical properties of AlGaInP LD/LED/VCSEL
Design of semiconductor lasers for:
(1) long-range optical fiber communication,
(2) short-distance optical fiber communication,
(3) high-density DVD.
High-power, passively Q-switched, solid-state lasers
2003/11/11
Welcome! Norbert and Zenon ^_^

7. Welcome! Norbert and Zenon ^_^
Thank You！
2003/11/11
Welcome! Norbert and Zenon ^_^