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Broadband,Inc.
〒121-0832
東京都足立区
古千谷本町4-7-9
お問い合わせ
TEL:03-5838-0082
ask@bblaser.com |
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結晶オーブン&温調器 |
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Abal
OptoTek社 (AOTK)
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精密結晶オーブン＆温度コントローラー
We
provide specially design precision crystal
oven and temperature controller to install,
heat and stabilize crystal to a certain
temperature. In response to the demand of
precision crystal oven and temperature
controller,and the trend of miniaturization of
optical devices, AOTK now introduces our
second generation of crystal oven and
temperature controller.
Precision
Crystal Oven Specifications
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OTC-I |
OTC-II |
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Host
Crystal Size
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up
to 7mm×7mm×25mm
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up
to 6×6×35mm |
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Oven
size |
Φ32mm
x 38.1mm (1.5")
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Φ55mm
x
60mm
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Temperature
Range
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Room
Temperature to 220°C
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Room
Temperature to 160°C |
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Accuracy
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0.1°C
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Weight
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105g
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300g |
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Power
Consumption |
15W/110VAC
or 15W/220VAC
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20W/110VAC
or 20W/220VAC |
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Connector
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4-pin
audio plug
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Cable
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4
lines cable about 1 meter
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Option:
Oven can be added windows on both end faces
The
crystal oven has a small footprint which
allows the oven to be mounted on standard
1" optical mounts. This is very
important for quick experiments where
limited space and time do not allow
specially designed mechanical part to fit
in. It also saves precious time and money
for product development.
Temperature Controller Specifications
The
temperature controller is microprocessor
controlled, and has dual line 4 digits LED
display (set point and real temperature). It
is very easy to operate, and accepts both
110V and 220V power sources.
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OTC-I |
OTC-II |
| Physical
Size
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155(L)×105(W)×70(H)mm
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120(L)×48(W)×96(H)mm |
| Temperature
Range
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Room
Temperature to 220°C
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| Warm-up
Time
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60
minutes
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| Resolution
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0.1°C
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| Stability
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better
than ±0.1°C
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| Dissipation
Power
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<
25W
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| Power
Consumption
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<
5VA
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| Environment
Temperature
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-10oC
to +55oC
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| Weight
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300g
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400g |
| Set
point range
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Selectable
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● Slow
heating rate is suggested for LBO crystal,
in order to prevent coating crack
due to its
inhomogeneous expansion.
Applications
● LBO
NCPM SHG of Nd:YAG/YLF/YVO4
Lasers
● LBO
NCPM OPO Pumped by SHG of Nd:YAG/YLF/YVO4
or Ti:Sapphire Lasers
● KNbO3
NCPM SHG of 860-940nm (a-cut); SHG
990-1070nm (b-cut)
● LiNbO3
NCPM SHG of YAG/YLF/YVO4
● Increase
damage threshold of KTP, LiNbO3
and BBO crystals
● Stabilized
high power SHG, THG, 4HG and 5HG of Nd:YVO4
Application Note
One of the major application of temperature
controlling in nonlinear optical conversion
is to use the Non-Critical Phase-Matching (NCPM)
for some non-linear optical crystals, e.g.
LBO and KNbO3. NCPM is preferred
because it could generate superior beam
quality and efficiency. It has very large
acceptance angle and zero walk-off which are
very important for doubling tightly focused
laser beam or laser beams with large
divergence.
NCPM Applications
| Crystal
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NLO
Applications
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Temperature |
| LBO
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SHG
(I) 1064nm,1053nm,1047nm
SHG (II) 1320nm
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148°C
- 170°C
40°C
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| KNbO3
(a-cut) |
SHG
860-940nm
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20°C
- 180°C
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| LiNbO3
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SHG
1064nm |
120°C
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| KD*P
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SHG
532nm |
52.1°C
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| ADP
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SHG
532nm
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51.2°C
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Installation
of Crystals
 
As
the figure shown above, to install crystal
in the crystal oven:
1
Turn the #2-56 screw on the side of the
crystal oven clockwise to pull up the
pressure bar inside
the crystal oven, until there is enough room
for the crystal.
2. Put the crystal into the oven by sliding
it into the square hole of the crystal
oven. Use wide blade
plastic tweezers to hold the crystal and
push it into the
square hole. Avoid
touching the surface of the crystal clear
aperture at all time.
Put the crystal in the
center of the oven.
3. Turn the same #2-56 screw on the side of
the crystal oven counter-clockwise to
release the pressure bar
inside the crystal oven, after the pressure
bar touches
the crystal top, release
an extra two rounds – this will give
enough force for the
pressure bar to hold the
crystal.
Caution!
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Do
not try to adjust the fixed setscrew, which
is glued to the crystal oven.
●
Do
not release the pressure bar without the
crystal inside the crystal oven, and
do not continue to
release the pressure bar when the #2-56
screw is already out
of the threaded hole
– try to screw the #2-56 screw back
into the pressure bar for
at least one round.
Over-release the pressure bar will let the
pressure bar fall off
the crystal oven and it
is very difficult to put it back on, without
special tools.
Ordering
Information
●
Crystal
Oven (Specify the exact crystal size to be
hosted, 110V or 220V)
●
Temperature
Controller (Auto detect 110V or 220V)
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Customized
oven sizes and structures available upon
request, call for price
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