英科光学

1.激光器
2.放大器
3.飞秒光谱仪（FS SPECTROSCOPY）
4.诊断设备/系统（DIAGNOSTICS）
5.器件产品

Atseva公司

Atseva是位于美国科罗拉多的重点研发和生产超快激光系统及相关设备的公司。飞秒激光的世界是迷人的，但自从它诞生以后，一直是相当昂贵的。Atseva公司的愿景是让任何实验室和行业用户能用得起飞秒激光器。因此，Atseva的解决方案是高性价比，可靠的和用户友好的。此外，大公司往往集中在生产几个系列的产品，而忽略定制化的需求，Atseva提供更多的定制化解决方案，以适应任何非传统的，新的应用。

Atseva的产品线涵盖了许多不同领域的应用，如：物理，生物，医学，多光子激发显微镜应用，泵浦 - 探测光谱，光学相干断层扫描，材料沉积，表面结构，双光子聚合等等。目前，Atseva的科研针对下面的热点开发产品，如：开发高功率光纤放大器，在气体中的波长转换和脉冲压缩，太赫兹波产生和超短飞秒脉冲在微加工领域的应用等。

Atseva完整的产品组合：

1) 激光产品：

Ti:S 固态超快和连续（CW）激光器（Ti:S solid-state ultrafast and CW lasers）
光纤激光器和放大器（fiber lasers and amplifiers）
DPSS Yb飞秒激光器（DPSS Yb femtosecond lasers）
Cr:F飞秒和CW固态激光器（Cr:F femtosecond and CW solid-state lasers）
Ti:S和Cr:F超短脉冲放大器系统（Ti:S and Cr:F ultrashort-pulse amplifier systems）

2) 诊断产品线：

实时和单次自相关（real-time and single-shot autocorrelators）
三阶交叉相关（third-order cross-correlators）
SPIDER系统和光谱仪（SPIDER systems and spectrometers）

3) 器件产品：

电光（EO）脉冲选择系统（EO pulse picker systems）
法拉第隔离器及旋转器（Faraday isolators and rotators）
谐波发生器和脉冲展宽/压缩器（harmonic generators and pulse stretchers/compressors）

Atseva产品

1.激光器

1)飞秒固体激光器（Femtosecond Solid-State）

Product		Pulse duration		Wavelength	Average power		Pulse energy		Repetition rate
TeMa		<100 fs		1050±5 nm	>3.5 W		>50 nJ		70 MHz

Product	Pulse duration	Wavelength	Average power	Pulse energy	Repetition rate
TiF-15	<15-30 fs	760-840 nm	230-500 mW	-	80-90 MHz
TiF-20	<20 fs	780-840 nm	150-250 mW	-	75-125 MHz
TiF-50	<50 fs	710-970 nm	300-900 mW	-	75-125 MHz
TiF-100	<100 fs	710-970 nm	300-1500 mW	-	75-125 MHz

Product	Pulse duration	Wavelength	Average power	Pulse energy	Repetition rate
CrF-400SP	<65 fs	1230-1270 nm (tunable)	>450 mW	-	96 MHz
CrF-450TP	<75 fs	1230-1270 nm (fixed)	>400 mW	-	95 MHz
CrF-700SP	<75 fs	1230-1270 nm (fixed)	>700 mW	-	95 MHz

2)飞秒光纤激光器（Femtosecond Fiber）

Product	Pulse duration	Wavelength	Average power	Pulse energy	Repetition rate
PErL	250 fs...5 ps	1560 nm	>50 mW	0.8 nJ	60 MHz
EFO	80...250 fs	1560 nm	10...250 mW	0.15...3.5 nJ	25-80 MHz
EFOA-SH	100...120 fs	780/1560 nm	80/160 mW	1.1/2.2 nJ	70 MHz
EFOA-UB	-	1100-2000 nm	>150 mW	-	70 MHz
EFOA-SH-UB	<150 fs	780/1560/ 1100-2000 nm	50-150 mW	-	70 MHz
YFOA	200...300 fs	1030...1064 nm	100-2000 mW	1.6...33 nJ	60 MHz
ANTAUS	<350 fs	1040; 1053 nm	>1000 mW	>1 uJ	1 MHz

3)连续激光器（Continuous –Wave）

• TiC Continuous-Wave Solid-State Ti:S Tunable Laser System

The TiC CW tunable laser is the choice with applications where tuning range and high average power level are a must, such as spectroscopy, semiconductor research and many more. The laser system features titanium-sapphire active medium for obtaining broad tuning range of 700 to 1000 nm with linewidth of <45 GHz. The system is equipped with a birefringent Lyot filter for manual or USB-controlled wavelength tuning*. Optional thick and thin automated etalons can be installed into the resonator cavity to bring the linewidth down to <2 GHz. Windows PC software is provided with the laser system for easier tuning and calibration. Learn more...

• LF-100 Cr:F CW Solid-State Femtosecond Laser System

The LF-100 is a chromium-forsterite continuous-wave tunable laser system with wavelength range from 1210 to 1290 nm.

The linewidth is limited by 10 cm-1 while the output power is >400 mW (with 10 W pump). The system is suitable for various microscopic and spectroscopic applications in the IR region. The system can also be equipped with a 10 W integrated pump laser (LF-100P). Learn more...

4)Ti:S 飞秒TW系统

• AVET Ti:S Femtosecond TW System （NEW！）

Our company is proud to offer the pinnacle of our technology, the AVET terawatt-level femtosecond laser system. The system comprises rugged Ti:S seed oscillator, pulse stretcher, CPA-based amplifier stages with Nd:YAG pump lasers, vacuum compressor chamber with turbomolecular and vaccum pumps outlets (for 10 TW system), synchronization and control electronics with computer interface. All components are integrated onto a single optical table ensuring stable operation. The additional Pockels cell pulse slicer offers enhanced nanosecond contrast ratio. Learn more...

2.放大器

1)Ti:Sapphire

• Ti:Sapphire Regenerative Amplifier REUS

The REUS family of amplifiers comprise a femtosecond seed oscillator (TiF-20F or fiber EFOA-SH), stretcher, Faraday isolator, Pockels cell with control and synchronization unit, regenerative amplifier, pulsed amplifier pump laser and compressor. The system may be equipped with an additional Pockels cell for contrast improvement. The cell enables the user to get "pulse-on-demand" operation and reduce the repetition rate to the required values. All elements are gathered into a single box on a thick breadboard, thus providing reliable and stable generation and hands-free operation. Learn more…

• Ti:Sapphire Amplifier MATEKO

The MATEKO femtosecond amplifier is designed to provide mJ-level output by amplifying pulses from a Ti:S or fiber ultrafast seed oscillator. The amplification ratio in such a system is more than 10^6 and happens in a Ti:S crystal during several passes while pumping by a Q-switched 515-532 nm laser. The hybrid system comprises two amplifiers: a regenerative stage and a multipass stage, thus enabling higher pulse energies. A single pump laser is used to pump both stages which reduces the cost of the system and boosts stability and performance. Learn more…

2)Cr:Forsterite

FREGAT Cr:F femtosecond amplifier system

Wavelength of 1240 nm
Pulse energy up to 1 mJ@10 Hz
Pulse duration <120 fs
Custom systems with peak power >1TW
Synchronization electronics
All-in-one design

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3)Yb Regenarative

TETA Yb femtosecond amplifier system

Pulse duration <300 fs
>> 200 µJ per pulse
Repetition rate up to 100 kHz
Optional SH and FH outputs
PC control software
High beam quality and pointing stability
Compact single-box solution

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4)TW Systems

AVET Ti:S Femtosecond TW System

Single-table design
>10 TW commercial system
<45 fs pulse duration
High beam quality
Excellent beam pointing and power stability

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3.飞秒光谱仪（FS SPECTROSCOPY）

1)SFG Spectrometer

• Astrolabe tabletop femtosecond SFG/CARS spectrometer

Astrolabe is table-top nonlinear spectroscopy setup designed to be installed on 4x8' (1200x2400mm) standard optical table. It consists of CPA (chirped-pulse amplification) Ti:Sapphire femtosecond laser source, femtosecond Optical Parametric Amplifier (OPA) as a source of tunable radiation, Air-spaced Fabry-Perot etalon for shaping 800nm pulses, beam delivery and conditioning system with computer-controlled delay line, gas-purged beams and sample boxes, with appropriate filters, attenuators and polarization control elements, modular sample holder and detection system consisting of spectrograph with CCD detector.SFG1 SFG2

Femtosecond broadband combination SFG/CARS spectrometer
Unique vibrational spectroscopy tool for monitoring surface layers in real time
Modular quick-interchangeable sample holdes for flat samples, crystals, liquid and electrochemical cells
Cost-efficient: combines two powerful nonlinear probes, specifically designed to be shared among several research groups
Compact tabletop design

4.诊断设备/系统（DIAGNOSTICS）

1)Autocorrelators (自相关)

• AA-20DD real-time USB autocorrelator

Learn more...

• AA-M real-time USB autocorrelator for microscopy

The AA-M real-time autocorrelator with an external photodetector allows monitoring of pulse duration at the very sample position of a microscope or other optical system. The system also has a second photodetector that is placed right before the microscope's input for pass-through comparative measurements. This lets you precisely control the imaging process and get the highest non-linear conversion efficiency possible with your laser system. Learn more...

• IRA-3-10 Autocorrelator

The IRA-3-10 autocorrelator is an indispensable tool for high resolution pulse duration measurement of femtosecond and picosecond OPAs. The unit consists of an optical head and an electronic control unit with USB interface for easy PC control. The software is included in the package and displays the AC trace and calculates pulse duration with Gaussian and sech^2 fitting options and data storage and export. Learn more...

• ASF single-shot autocorrelator (SSA)

The ASF single-shot autocorrelator is a handy pulse duration measurement tool for amplifiers and oscillator. Real-time amplifier adjustment is really impossible without assistance of the ASF. It is equipped with USB connection and LabView drivers for seamless integration into existing setups. The unit is really a workhorse for any lab that needs reliable pulse duration data right at the screen of a PC. Learn more...

2)SPIDER脉冲诊断系统

• SPIDER pulse diagnostic system

Down to 6 fs measurement
Single-shot sensitivity 10 uJ
Oscillator and amplifier measurement
650 to 1050 nm possible wavelengths
USB PC connection and PC acquisition software

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3)交叉相关（Cross-Correlators ）

• COMET Scanning Third-Order Cross-Correlator (TOCC)

The Comet third-order scanning cross-correlator (aka TOCC) offers its 10^10-wide dynamic range and 950ps-broad temporal range at your service. It can give comprehensive information about the ASE of the amplifier, pulse pedestal, pre-and post-pulses's structure and shape. The unit also gives information about the pulse intensity cross-correlation function and measure pulse duration and shape. The user can also select the desired narrow area (say, +/- 50 ps from the peak) for faster scanning speed. The Comet communicates with a PC via USB and acquisition and analysis software is included in the package. Learn more...

• COMET-A IR Cross-Correlator (TOCC)

The Comet-A cross-correlator is specifically developed for measurement of pulse duration of femtosecond and ps OPAs. Knowing exact pulse duration and pedestal information is essential for many applications, especially with the OPAs as there are quite few devices that can fulfill the task. The advantage of the cross-correlation method is that it can display pre- and post-pulse structure while autocorrelation will show symmetric curve. However, if you require higher resolution, please refer to our IRA-3-10 autocorrelator for IR measurements. Learn more...

5.器件产品

1)脉冲压缩器（Pulse compressor ）

• APC dispersion compensation system

Negative dispersion up to -13000 fs^2@800 nm
Transmission >90%
Integration into Atseva's laser systems
Automated adjustment

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• Gas Compressor Compulser

Up to 1:10 compression ratio
Energy efficiency 50%
Input pulse energy up to 1 mJ
800 and 1058 nm standard models

2)脉冲选择器（Pulse Picker）

• OG pulse picker systems

Possible wavelength: 250 - 2100 nm
Adjustable amplitude up to 12 kV
HV pulse adjustable delay
HV pulse duration from 3 to 1250 ns
Fast rise time down to 1 ns or less
Single-shot up to 100 kHz picking rate
USB control and LabView drivers
Low jitter <200 ps
Built-in optical trigger
Two additional sync channels

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3)谐波产生器（Harmonic Generators）

• ASG second and fourth harmonic generators

The ASG frequency doubler provides smooth harmonic generation from a fundamental beam of Ti:S (710-960 nm), Yb (1020-1070 nm) and Cr:F (1250 nm) femtosecond laser systems. The unit is a compact portable system comprising the conversion crystal and all optics necessary for beam adjustment. The generators offer high conversion efficiency, virtually no beam distortion and low pulse broadening for ultrafast applications. Learn more...

• ATsG multi-harmonic generator

The ATsG frequency conversion unit provides smooth second and third harmonic generation from a fundamental beam of Ti:S (750-900 nm), Yb (1020-1070 nm) and Cr:F (1250 nm) femtosecond laser systems. The unit is a compact portable system comprising the conversion crystals and all optics necessary for beam adjustment. The generators offer high conversion efficiency, virtually no beam distortion and low pulse broadening for ultrafast applications. Learn more...

4)THz 产生器

• THz Generator Tera-AX

Central frequency 1 THz
Spectrum width 1.5 THz
Pulse duration <1 ps
THz pulse energy up to 1 nJ
EO-AX THz detector option

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5)拉曼移频器（Raman Shifters）

Conversion efficiency up to 30%
Various active media with different frequency shift values
Input pulse energies up to 100 mJ
Standard models for 800/1058/1250 nm

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6)衰减器（Attenuator）

• OAFP and OAGP optical attenuators

10^3 attenuation dynamic range
Transmission >90%
Integration into Atseva's laser systems
Optional USB automated adjustment

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