Overview
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Extensive phasematching and optical transmission range
Beta-barium borate (BBO) is a versatile nonlinear crystal ideally suited to phasematching applications.
Phasematching from visible to far ultraviolet. BBO offers a phasematching range of 410 to 2,100 nm and optical transmission from 200 to 2,100 nm. Key features include large nonlinear coefficients, a high threshold for laser damage, and a low thermo-optic coefficient.
Harmonic Generation. BBO is suitable for use in a variety of applications, including second harmonic generation of wavelengths as short as 204.8 nm, with shorter wavelengths possible using sum frequency mixing. Mixing the first and fourth harmonic generates the fifth harmonic of Nd:YAG, while mixing the output of a Ti:sapphire laser generates ultraviolet (UV) wavelengths over a wide range.
Crystal protection. BBO crystals are available with a dielectric coating to protect polished surfaces from fogging due to ambient moisture. Because BBO is water soluble, unprotected polished surfaces easily become fogged during typical laboratory use. Coatings also reduce reflections from polished surfaces, improving transmission quality for all wavelengths.
Multiple sizes, orientations. We fabricate and polish BBO crystals in a wide range of standard and custom sizes and orientations. Available lengths range from 50 µm for short-pulse work to 15 mm for nanosecond OPO/OPA use. All crystals are oriented in a double crystal x-ray spectrometer and are accurate to ± 5 minutes. Fill out this this RFQ formfor help in configuring your crystal.
Inhouse crystal growth
All BBO crystal growth, orientation, fabrication, polishing, and testing is performed at our NJ facility, ensuring a high level of quality assurance and 100% traceability. |
Sizes
BBO Single Crystals
| Size (mm) |
Corresponding INRAD Cells |
Notes |
| 5 x 5 x 0.1 |
530-041, 535-040 |
Cannot be coated |
| 5 x 5 x 0.25 |
530-041, 535-040 |
|
| 5 x 5 x 0.5 |
530-041, 535-040 |
5-14B & 5-050 size |
| 5 x 5 x 1.0 |
530-041, 535-040 |
5-14B size |
| 5 x 5 x 2.0 |
530-041, 565-110, 535-040 |
5-035C & 5-050 size |
| 5 x 5 x 5 |
530-041, 534-040, 535-040, 561-044 |
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| 5 x 5 x 10 |
534-040, 561-044 |
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| 5 x 7 x 6 |
561-044 |
Autotracker size |
| 5 x 7 x 8 |
561-044 |
Autotracker size |
| 8 x 8 x 5 |
530-081, 534-070, 561-044 |
|
| 8 x 8 x 10 |
534-070, 561-044 |
Autotracker size |
| 8 x 10 x 6.5 |
561-044 |
Autotracker size |
| 8 x 10 x 8 |
561-044 |
Autotracker size |
| 8 x 10 x 12 |
|
OPO size |
| 10 x 12 x 6.5 |
561-044 |
Autotracker size |
| 10 x 12 x 8 |
561-044 |
Autotracker size |
Orientations
BBO Standard Orientations (all are Type I)
| Designation |
Angle θ |
Operation |
Input |
Output |
| “0” |
68.5°
|
SHG |
418-464 nm |
209-232 nm |
| THG |
(600-665 nm) + (300-331 nm) |
200-220 nm
|
|
“1”
|
53.2°
|
SHG |
454-560 nm
|
209-232 nm
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| THG |
(651-800 nm) + 325-400 nm)
|
217-266 nm
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|
“2”
|
37.4°
|
SHG |
542-820 nm
|
271-410 nm
|
| THG |
(774-1165 nm) + (387-582 nm)
|
258-388 nm |
|
“A”
|
78°
|
SHG |
410-433 nm
|
205-216 nm |
| THG |
(594-620 nm) + (297-310 nm)
|
198-206 nm
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“B”
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55°
|
SHG |
448-543 nm
|
224-271 nm
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| THG |
(642-775 nm) + (321-358 nm)
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214-258 nm
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|
“C”
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65°
|
SHG |
423-480 nm
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211-240 nm
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| THG |
(608-687 nm) + (304-343 nm)
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203-229 nm
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|
“TSS”
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28.7°
|
SHG |
636-1000 nm
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318-500 nm
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| THG |
(906-2100 nm) + (453-1050 nm)
|
302-700 nm
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|
“TST”
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44°
|
SHG |
496-675 nm
|
248-337 nm
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| THG |
(710-960 nm) + (355-480 nm)
|
237-320 nm
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|
“OPO1”
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36.6°
|
SHG |
549-844 nm
|
275-422 nm
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| THG |
(784-1200 nm) + (392-600 nm)
|
262-400 nm
|
| SFM |
1064 nm + (510-567 nm)
|
345-370 nm
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|
“OPO2”
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57.5°
|
SHG |
440-525 nm
|
220-262 nm
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| THG |
(632-750 nm) + (316-375 nm)
|
211-250 nm
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|
“M1”
|
50.2°
|
SFM |
1064 nm + (243-340 nm)
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198-257 nm
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“DGN”
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31°
|
SFM |
1064 nm + (380-980 nm)
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280-510 nm
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|
“IDLR”
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20°
|
SHG |
1380-1460 nm
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690-730 nm
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|
“OPO3”
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30°
|
OPO |
355 nm
|
410-2000 nm
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|
“SHG”
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22.8°
|
SHG |
1064 nm
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532 nm
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“THG”
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31.3°
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THG |
1064 nm + 532 nm
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355 nm
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“4HG”
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47.6°
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4HG |
532 nm
|
266 nm
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|
—
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22°
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SHG |
1550 nm
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775 nm
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BBO crystals are normally supplied with a single-layer MgF2 protective coating
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