Series 1145 Q-switches are miniature electro-optic devices (Pockels cells) intended for use with the latest compact size lasers. They are …]]>

Series 1145 Q-switches are miniature electro-optic devices (Pockels cells) intended for use with the latest compact size lasers. They are useful for Q-switching, cavity dumping and laser pulse extraction in regenerative amplifiers. Other applications include polarization rotation, laser beam chopping,slicing and pulse picking. They accommodate the most demanding high peak power laser applications. All models within the series utilize a rugged internal crystal support and hermetic sealing system. The devices incorporate highest quality crystals, fused quartz windows and high damage threshold antireflection coatings.

1145 SERIES POCKELS CELL ELECTRO-OPTIC Q-SWITCHES DATA SHEET (PDF)

Lasermetrics Models 1111 and 1112 are the fastest switching Pockels Cell Electro-Optic Modulators currently available. The Model 1111, a single crystal …]]>

Lasermetrics Models 1111 and 1112 are the fastest switching Pockels Cell Electro-Optic
Modulators currently available. The Model 1111, a single crystal device and the 1112, a dual
crystal model have demonstrated rise times of 40 picoseconds and 85 picoseconds
respectively. They attain, within a few percent, the maximum theoretical speed possible for
devices of their physical clear aperture.

The Model 1112 operates at one half the voltage required by the single crystal Model 1111 by using two crystals optically in series and electrically in parallel. Both devices are configured to present a 50 Ohm impedance to
the electrical driving pulse.
These Pockels Cells are made from carefully screened KD*P crystals with >98.5%
deuteration, having a computer optimized cylindrical ring electrode geometry. The design
minimizes drive voltage and switching speed and optimizes optical performance. Crystals are
mounted in a rugged aluminum housing sealed with fused quartz windows. The design permits
use of index matching fluid to minimize reflections from internal optical surfaces. This
feature, in combination with high efficiency, multilayer antireflection coatings on the
protective window surfaces, can provide a transmission of efficiency as high as 98%.

The 1111 and 1112 were designed for use as fast shutters for pulse chopping and isolation, and in
modelocked pulse selection systems where only a single picosecond or femtosecond pulse must be
gated from the pulse train. Total optical path length of the 1111 is 15 mm and that of the 1112 is 22 mm,
which minimizes temporal dispersion. The devices find use in many other laser system applications
requiring the ultimate in switching speed. This series is intended for use with pulsed voltages only since the
equivalent electrical transmission line circuit presents a 50 Ohm impedance load to the driving voltage
source.

MODELS 1111 / 1112 PICOSECOND POCKELS CELLS DATA SHEET (PDF)

Lasermetrics 1059 E-O Modulator/Q-switches are electro-optic devices that are used in many laser systems world-wide. The 1059 Series originated in 1970 …]]>

Lasermetrics 1059 E-O Modulator/Q-switches are electro-optic devices that are used in many laser
systems world-wide. The 1059 Series originated in 1970 and have been continuously upgraded and
improved. They will accommodate the most demanding high peak power laser applications. All
models within the series utilize an enhanced internal crystal support and superior sealing system. The
devices incorporate highest quality crystals, fused quartz windows and high damage threshold
antireflection coatings.
E-O performance of the 1059 Series is based on highly deuterated (98+%D)-KDP (KD*P) crystals,
selected for the absence of strain and stria, lowest residual birefringence and wavefront distortion. A
cylindrical ring electrode-crystal configuration produces the most uniform retardation field
currently available. Crystals are mounted in durable and mechanically stable thermoplastic housings.
Stainless steel aperture plates are used in all models. Windows are bubble and strain-free fused
quartz with high efficiency antireflection coatings.

Sol Gel antireflection coatings can be applied to the crystal for highest peak and average power
applications. Sol Gel coatings are extremely efficient, having reflectance losses of about 0.05%.
Damage threshold for Sol Gel coatings is at least as high as that of the KD*P crystal material
While Sol Gel crystal coatings have largely replaced Index Matching Fluid (IMF) for the visible through
Near IR, these coatings are not efficient in the UV range below 400 nm. For UV applications, when
IMF is required to minimize reflection losses at the window-crystal interfaces, we recommend our
Series 1040 and Model 1058 Pockels cells.

A variety of antireflection coatings options are available. A key feature of the 1059 Series is the
user’s ability to adjust the alignment of the fused quartz windows. This may be done while the
device is in position in the laser optical train.
Simple hex wrench adjustments can tilt each window to be precisely on or off-axis by as much
as 2 degrees. The Q1059P model can be specified with wedged or parallel window surfaces and with
the crystal cut at a desired off-axis or wedge angle.
In very fast pulse gating applications, with laser pulses widths less than 100 picoseconds, the 1059
Series has a nominal damage threshold of 20 Gigawatts/cm2. In Q-switching the devices will
tolerate in excess of 850 Megawatts/cm2 at less than 10 nanoseconds pulse width.
Lasermetrics Q-switch drivers 5055, 5056, 5060, and Laser Extraction/Chopping Systems 5046,
5057 and 8025RS can be used with all 1059 models within the series.
Q1059P Series devices are guaranteed against defects in materials and workmanship for one year.

1059 SERIES ELECTRO-OPTIC Q-SWITCHES DATA SHEET (PDF)

Lasermetrics 1058 Q-switches are large aperture electro-optic devices that are used in high energy lasers having beam diameters up to 20 mm diameter. …]]>

Lasermetrics 1058 Q-switches are large aperture
electro-optic devices that are used in high energy
lasers having beam diameters up to 20 mm
diameter. The 1058 Series was used in the
earliest Ruby and Nd:YAG medical lasers and the
latest, improved versions are presently used in
several medical laser systems marketed
throughout the world. They will reliably
accommodate the most demanding high peak
power laser applications.

All models within the series utilize an enhanced internal crystal support and superior sealing system. The devices
incorporate highest quality crystals, fused quartz windows and high damage threshold
antireflection coatings.
1058 Series E-O performance is based on highly deuterated (98+%)D-KDP (KD*P)
crystals, selected for the absence of strain and stria, lowest residual birefringence and wavefront
distortion. A cylindrical ring electrode-crystal configuration produces the most uniform
retardation field currently available. Crystals are mounted in durable and mechanically stable
aluminum housings. . Stainless steel aperture plates are used in all models. Windows are
bubble and strain-free fused quartz with high efficiency antireflection coatings.
Sol Gel antireflection coatings can be applied to the crystal for highest peak and average power
applications in the wavelength range of 650 nm to 1100 nm. Sol Gel coatings are extremely
efficient, having reflectance losses of .0.05%.

Damage threshold for Sol Gel coatings is at least as high as that of the KD*P crystal material.
For many low repetition rate applications index matching fluid is employed in the hermetically
sealed, vacuum tested housing to minimize reflection losses at the window-crystal interfaces.
A variety of antireflection coatings and index matching fluid options are available. A key
feature of the 1058 Series is the user’s ability to adjust the alignment of the fused quartz
windows. This may be done while the device is in position in the laser optical train. Simple hex
wrench adjustments can tilt each window to be precisely on or off-axis by as much as 2 degrees.
All models can be specified with wedged or parallel window surfaces and with the crystal cut
at a desired off-axis or wedge angle.
In fast pulse gating applications, with laser pulses less than 100 picoseconds width, the 1058
Series has a damage threshold of greater or equal to 20 Gigawatts/cm2. In Q-switching the devices will
tolerate in excess of 850 Megawatts/cm2 at less than 20 nanoseconds pulse width.
Lasermetrics Q-switch drivers 5048, 5055SC, 5056, 8006; 8025S pulse choppers; 5046E and
5046SC pulse extractors, can be used with all 1058 models within the series. The 1058
models have been used with the 8403 HV Amplifiers in polarization and circular dichroism
studies.

1040 Series Pockels cell light modulators are designed for high speed laser shutter and pulse chopper applications external or internal …]]>

1040 Series Pockels cell light modulators are designed for high speed laser shutter and pulse chopper applications external or internal to the laser cavity. They are also utilized as Q-Switches, cavity dumpers and polarization rotators. The basic mechanical design is

configured to accept a variety of connection devices to meet most system requirements.

1040 SERIES POCKELS CELL ELECTRO-OPTIC LIGHT MODULATORS DATA SHEET (PDF)