Spectra extending from 600 to 1200 nm have been generated from a kerrlens modelocked ti. An antireflection coated lens is used for focusing the. However, with an appropriate design, titanium sapphire can also be used in continuous wave lasers with extremely narrow linewidths tunable over a wide range. Sapphire laser for gaas photocathode evaluation a thesis submitted in partial. Sapphire was demonstrated as an active solidstate laser material in the 1980s. A sapphire crystal doped with titanium ions absorbs this green pump light. Frequencydoubled dbrtapered diode laser for direct pumping of. Sapphire pulse since the first demonstration of the gain material ti. A laser operated in this way is sometimes referred to as a femtosecond laser, for example in modern refractive surgery. The amplification model includes the phase distortion effect caused. Combined oct and cars using a single ultrashort pulse ti. A continuoustuning range of 12 nm, which was limited by wavelengthdependent angle deviation of the beam deflection in the crystal, was extended to over 100 nm by optical correction.
Medical laser systems, lidars, laser spectroscopy, direct femtosecond pulse generation by kerrtype modelocking there are a lot of existing and potential applications of ti. Generation of 5fs pulses and octavespanning spectra. Ablation of amorphous polyethyethylletone peek by a. Sapphire centered at 490 nm makes it suitable for variety of laser pump sources argon ion, frequency doubled nd. Observed and calculated ringlaser pulse buildup time for the 60%r output mirror. Laser diamond photonics is lithuanian company what focusing on the laser technology in industrial applications. The gui reports the center wavelength and output power of the laser, using the builtin spectrometer to provide realtime diagnostics of the spectral position and shape. Userprogrammable buttons provide singleclick access to commonly used excitation wavelengths. Sapphire quasicw laser high stability and durability of output parameters is provided by special temperature control of nonlinear crystals as well as laser. The kyropoulos technique allows growing large diameter ti doped sapphire for chirped pulse amplification cpa laser. These spectra are to our knowledge the broadest ever generated directly from a laser. Ti sapphire laser cw narrow linewidth laser solstis. Ablation characteristics of au, ag, and cu metals using a. Beamtechs multiple products output energy from 20 mj to 100 j are suitable for pumping cpa system of ti.
Al 2 o 3 is a tunable laser which emits red and nearinfrared light in the range from 650 to 1180 nm. These crystals combine supreme thermal and optical properties with broadest lasing range among other materials. Sapphire laser in order to show the differences in spectra generated by femtosecond and nanosecond excitations in the same. Compact supercontinuum source for the visible using gainswitched ti. Sapphire femtosecond laser for twophoton microscopy. The millennia diode laser produces an infrared beam that is frequency doubled into the green to provide the pump beam for the femtosecond oscillator.
Sa crystal, m1,2 are the confocal mirrors of the cavity, m3 is an auxiliary plane mirror, 4,5 are the fully reflecting plane mirror and the output mirror transparency around 8%, l is a focusing lens. Paper open access experimental study of selfinduced. Powerful narrowline source of blue light for laser cooling. Northrop grumman cutting edge optronics ceo offers a complete dpss laser platform dedicated as pump lasers for ultrafast amplifiers. When it was introduced in 1994, this was the first commercial ti.
Should you experience any difficulties with your laser or need any technical information, please visit our web site. Twophoton absorption cross section of excited phthalocyanines by a femtosecond ti sapphire laser. With a broad visible absorption band it is conveniently pumped with green wavelength lasers to produce a tunable output from 700 to 900 nm. It has a high average output power of 600 mw, while maintaining a ti. Femtosecond laser ablation of metallic bulk crystals of au, ag and cu was experimentally studied with laser pulse widths ranging from 120 fs through 800 fs at a center wavelength of 780 nm for micromachining applications. Using the growing method of temperature gradient technique, we can supply large size dia30 x 30 mm crystal in high quality free of scattering, high gain and damage threshold. We have applied a birefringent acoustooptic crystal for wavelength tuning of a ti. Northrop grumman cutting edge optronics1, 20 point west blvd. Chameleon vision lasers add automated dispersion precompensation to deliver short pulses right to the sample plane, and the visions, short pulse 75 fs system, delivers higher peak power than any other automated tunable ti. We have introduced several factors that can be useful for the modeling and analysis of highpower ti. Sapphire crystals can be effectively pumped by short pulse flashlamps in powerful laser systems. Sapphire laser, resonant frequency doubler, atom cooling. Sapphire laser which enables high axial resolution oct and simultaneously combined with a spectral shaper a cars setup.
Specially designed doublechirped mirror pairs provide broadband controlled dispersion, and a second intracavity focus in a glass plate provides additional spectral broadening. Since their invention in the early 1980s, titaniumdoped sapphire ti. Pdf compact supercontinuum source for the visible using. Sapphire laser 5100 patrick henry drive santa clara, ca 95054 usa. Sa was initially proposed and demonstrated as a nearinfrared gain medium in 1982, and was commercialized by spectraphysics in 1988 with the launch of a continuouswave laser. Tolar527, which generate 2030 mj at 527 nm with 1 khz repetition rate, is suitable for pumping the regenerative amplification stage of cpa system. Use and development of a cw titanium sapphire laser for. Modelocking is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, on the order of picoseconds 10. The awardwinning ti sapphire solstis laser is a stepchange in continuouswave ti. Sapphire femtosecond laser laser is a maintenancefree, ti. In this paper, design and constr uction of a tunable pulsed ti. This product conforms to the requirements of 21 cfr 1040.
The smallest, lowest noise, and only turnkey laser of its type, solstis provides a host of nextgeneration features that lower cost, while maximising reliability, performance and productivity. And because of its broad absorption band in the blue and green, energy for the lasing process can be supplied by a standard continuous wave cw argon ion laser, as opposed to an. The basis of the technique is to induce a fixedphase relationship between the. Sapphire is the most widely used laser crystal for tunable and ultrashort pulsed lasers with high gain and high power outputs. Rp photonics encyclopedia titaniumsapphire lasers, ti. Mira 900, chameleon ultra, 2016ultrafast laser systemscatalog. Since its first use in 1986 1, titaniumdoped sapphire in short. Request pdf on mar 2, 2020, qianliang li and others published ablation of amorphous polyethyethylletone peek by a femtosecond ti. Ogilvie, interferometric fourier transform coherent antistokes raman. Today, they play an important role across a wide range of photonics applications, including. This chapter contains a list of worldwide spectraphysics service centers you.
Refer to the ec declaration of conformity in chapter 2, laser safety. Sapphire laser through enhanced kerr lens modelocking klm and dispersion compensation. It is suitable for both pulsed and continuouswave operation. Rate equations for a fourlevel system are written and their numerical solution is examined. Fast and random access of lasing wavelengths by direct electronic tuning was demonstrated at a pulsed operation.
A scattering defect particular to kyropoulos grown crystal is presented. Second and third harmonic generation in bbo by femtosecond. Figure 11b, with an additional planarcut nonbrewster and antireflection. Sapphire has become a great workhorse in the area of ultrafast laser oscillators and amplifiers particularly in the regime of very short pulse durations below 10 fs where few alternative. Its compact, ultranarrow linewidth, fully automated, low noise and widely tunable. Twentytwo years after the ruby laser was discovered, p. The characteristic length of different ablation regimes was explained in terms of the optical skin.
The chameleon mpx, is a wavelength extension that is pumped by chameleon ultra or vision lasers. In c,d, the upper lower line shows the clockwise anticlockwise propagating wave. University of groningen ultrafast solvation dynamics explored. Sapphire crystal general description titanium doped sapphire al 2 o 3. Two different ablation regimes were found in terms of the laser fluence. Generation of fs, 5mw pulses from a cavitydumped ti. The spitfire is available in a wide variety of models. In order to extend the performance of oct towards detecting the molecular fingerprint of biological samples a combined carsoct setup has been developed that employs only a single ultrashort pulse ti. Spectra model 2030 and 2035 high power ion laser instruction manual laser. Terahertz broadband antireflection motheye structures fabricated by. This unit used a 15mm long lbo crystal with normal faces, antireflection coated. Sapphire lasers have become so ubiquitous in the laser community is its excellent modelocking characteristics that allow it to generate femtosecond pulses with great ease and stability. Th is was followed in 1990 by a picosecond modelocked oscillator, and in 1991 with a femtosecond version.
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