BBO Crystal by OptoCity
Description
BBO (Beta-Ba2BO4, Beta-Barium Borate) crystal is one of the most widely used nonlinear crystal. BBO crystal combines the features of,
- Wide transparency wavelength range (189-3500nm)
- Broad phase-matchable SHG wavelength range (409.6-3500nm)
- Large effective nonlinear coefficient
- High damage threshold
- High optical homogeneity
- Good mechanical and physical properties.
BBO Crystal by OptoCity
Specifications |
|
|---|---|
| Crystal Type: | BBO (Beta Barium Borate) |
| Phase Mathcing Type: | Type I, Type II |
| Mounting: | Mounted, Unmounted |
| Width: | N/A mm |
| Height: | N/A mm |
| Length: | N/A mm |
| Flatness: | <= Lambda/10 |
| Surface Quality (Scratch-Dig): | 10-5 |
| AR Coating: | One side, Both Sides, Not Coated |
Applications
1. SHG/THG/FHG/5thHG of Nd:YAG Laser - BBO is an excellent NLO crystal for frequency doubling, tripling and quadrupling of high power acousto-optic and electro-optic Q-switched and mode-locked Nd:YAG and Nd:YLF lasers. A stable output of more than 15W with conversion efficiency >50% green laser can be generated with intracavity SHG by using BBO NLO crystal. BBO is the best NLO crystal to produce the 5th HG at 213nm.
2. SHG of Ti:Sapphire Laser - BBO is a prime NLO crystal for frequency doubling, tripling, and quadrupling of ultra-fast Ti:Sapphire Laser. By using a thin BBO NLO crystal, UV laser as short as 6fs can be generated by frequency doubling, tripling an ultra-fast Ti:Sapphire Laser.
3. SHG of Dye Lasers - Using a BBO NLO crystal, tunable UV output from 205-310nm can be generated by frequency-doubling an Excimer Laser pumped Dye Laser. BBO conversion efficiency is 4-6 times higher than that of ADP NLO crystal.
4. SHG of Ar+ Laser - By intracavity frequency doubling an Ar+ laser, 36 lines of deep UV laser ranging from 228.9nm to 257.2nm can be generated with a Brewster-angle-cut BBO NLO crystal.
5. OPO/OPA - BBO's OPO and OPA are powerful tools for generating widely tunable laser from UV to IR. 266nm, 355nm and 532nm pumped BBO's OPO/OPA are widely used in research. For example, with 40mJ 75ps 532nm pump, an OPO output ranging from 680nm to 2400nm with the peak power of 1.6MW and up to 30% energy conversion efficiency was obtained in a 7.2mm long type I BBO NLO crystal.
6. E-O application - BBO has much higher damage threshold than KD*P or LiNbO3 NLO crystal. More than 80W output power and 50KHz repetition rate was reached by using BBO NLO crystal and Nd:YVO4 crystal as gain media. At 5KHz, BBO Q-switch get pulse width as short as 6.4ns,and energy of 5.7mJ or peak power of 900KW. BBO has advantages over the commercial A-O Q-switch, including a very short pulse, high beam quality and compact size. However, BBO has a relative small E-O coefficient, the Half-wave voltage is high (7KV at 1064nm,3x3x20mm3). Long and thin BBO crystal can reduce the voltage requirement. 25mm long and 1mm thin high optical quality BBO crystal with Z-cut, AR-coated and Gold/Chrome plated on the side faces is supplied in OptoCity.
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Frequently Asked Questions
BBO crystal has various applications, including SHG/THG/FHG/5thHG of Nd:YAG Laser, SHG of Ti:Sapphire Laser, SHG of Dye Lasers, SHG of Ar+ Laser, OPO/OPA, and E-O application.
BBO crystal is a nonlinear crystal widely used for frequency doubling, tripling, and quadrupling of lasers. It has a wide transparency wavelength range, broad phase-matchable SHG wavelength range, large effective nonlinear coefficient, high damage threshold, high optical homogeneity, and good mechanical and physical properties.
The conversion efficiency of BBO crystal is more than 50% for generating a stable output of more than 15W with intracavity SHG by using BBO NLO crystal.
The Half-wave voltage of BBO crystal is high (7KV at 1064nm,3x3x20mm3), but it can be reduced by using long and thin BBO crystal.
The tunable UV output generated by frequency-doubling an Excimer Laser pumped Dye Laser using a BBO NLO crystal ranges from 205-310nm, and the BBO conversion efficiency is 4-6 times higher than that of ADP NLO crystal.