Del Mar Photonics - Newsletter Fall 2010 - Newsletter Winter 2010

How to choose BBO crystal for type II THG - request a quote

1040.0(e)+ 520.0(o)= 346.7(e)
Walkoff [mrad] = 71.83 0.00 78.64
Phase velocities = c/ 1.605 1.675 1.652
Group velocities = c/ 1.624 1.725 1.762
Group vel. dispersion in 10^5 cm/sec*m-1=
-0.23 -0.80 -1.31
At theta = 39.6 deg.
deff = 1.25 pm/V
Field gain coeff. = 1.39E-4 /sqrt.Watt
Crystal ang. tol. = 0.38 mrad*m
Temperature range = 15.39 K*m
OPO accpt ang = 0.90 0.43 mrad*m
OPO accpt bw = 9.87 9.87 cm-1*m

1040.0(o)+ 520.0(e)= 346.7(e)
Walkoff [mrad] = 0.00 59.12 62.77
Phase velocities = c/ 1.655 1.580 1.605
Group velocities = c/ 1.674 1.618 1.700
Group vel. dispersion in 10^5 cm/sec*m-1=
-0.28 -0.68 -1.22
At theta = 61.9 deg.
deff = 0.419 pm/V
Field gain coeff. = 4.78E-5 /sqrt.Watt
Crystal ang. tol. = 0.90 mrad*m
Temperature range = 17.42 K*m
OPO accpt ang = 1.06 0.56 mrad*m
OPO accpt bw = 17.79 17.79 cm-1*m

Please notice that the parameter of 'deff' means NLO coefficient. You can see that the conversion efficiency of the first match is much higher than the second one. So, normally, most of people select the first phase matching angle.

Below is a partial stock of BBO crystal for type II THG. Please e-mail us for current stock availability and pricing.

BBO crystal for type II THG.
 1040.0(e)+ 520.0(o)= 346.7(e)
At theta = 39.6 deg., phi=30deg.
  1030.0(e)+ 515.0(o)= 343.3(e)
At theta = 40.1 deg.., phi=30deg.

BBO crystal for OPO

New standard BBO crystals:

Crystal 1: Type II BBO, dia.10(+/-0.1)x0.1(+/-0.05)mm, Theta=58(+/-0.5)deg, and Phi= 30(+/-0.5)deg., AR-coating - request a quote


Cyrstal 2: Type I BBO, dia.5(+/-0.1)x0.1(+/-0.05)mm, Theta=71(+/-0.5)deg, and Phi= 90(+/-0.5)deg., AR-coating - request a quote

BBO is an efficient NLO crystal for the second, third and fourth harmonic generation.
beta-BBO and alpha-BBO crystals, as thin as 0.01mm, as thick as 20mm are available from Del Mar Photonics
Examples of BBO crystals available from Del Mar Photonics.

BBO crystals

Example 1

Type I, SHG, 800 nm to 400 nm - request a quote
Orientation: Theta=29.2 deg; Phi=90 deg (+/- 0.5 deg)
Specifications:
Material: BBO crystal
Dimensions: 6 x 6 mm (+/-0.1 mm)
Thickness: 0.2 mm
Surface Quality: 10-5, scratch-dig
Flatness: Lambda/6 at 633 nm
Parallelism: <= 5 arc minutes
Other faces: fine grind
Coating: DICHROIC AR/AR at 800 nm and 400 nm on both faces
Mount diameter: 25.4 mm

Example 2

Type I, THG, 800 nm to 266 nm - request a quote
Orientation: Theta=44.3 deg; Phi=90 deg (+/- 0.5 deg)
Specifications:
Material: BBO crystal
Dimensions: 6 x 6 mm (+/-0.1 mm)
Thickness: 0.2 mm
Surface Quality: 10-5, scratch-dig
Flatness: Lambda/6 at 633 nm
Parallelism: <= 5 arc minutes
Other faces: fine grind
Coating: PROTECTIVE at 800 nm and 266 nm
Mount diameter: 25.4 mm

To request a quote for custom BBO crystals please e-mail us specifications and drawing.

Standard crystals

Model	Product Name+	Buy Now
BBO-606	BBO crystal, 10x10x0.5 mm
BBO-607	BBO crystal, 10x10x1 mm
BBO-601	BBO crystal, 6x6x0.1 mm
BBO-602	BBO crystal, 6x6x0.2 mm
BBO-604	BBO crystal, 6x6x1 mm
BBO-605	BBO crystal, 6x6x2 mm

Model	Product Name+	Buy Now
BBO-608	BBO crystal, 6x6x0.1 mm
BBO-609	BBO crystal, 6x6x0.2 mm
BBO-610	BBO crystal, 6x6x0.5 mm
BBO-611	BBO crystal, 6x6x1 mm

Model	Product Name+	Buy Now
BBO-612	BBO crystal, 7x7x6 mm

Del Mar Photonics related products:

Pismo pulse picker (ultrafast electro-optical shutter) - several Pismo models use Pockels cells based on BBO crystals
Wavelength conversion: second and third harmonics generators for femtosecond lasers
 

Femtosecond Lasers - Reserve a spot in our femtosecond Ti:Sapphire training workshop during this summer in San Diego, California

Trestles femtosecond Ti:Sapphire laser
Trestles Finesse femtosecond Ti:Sapphire laser with integrated DPSS pump laser
Teahupoo Rider femtosecond amplified Ti:Sapphire laser
Mavericks femtosecond Cr:Forsterite laser
Tamarack femtosecond fiber laser (Er-doped fiber)
Buccaneer femtosecond OA fiber laser (Er-doped fiber) and SHG
Cannon Ultra-broadband light source
Tourmaline femtosecond Yt-doped fiber laser
Chata femtosecond Cr:ZnSe laser (2.5 micron) coming soon

more products

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Del Mar Photonics