{"product_id":"800nm-chirped-mirror-275fs","title":"800nm Chirped Mirror HD58-25.4-6.35","description":"\u003cdiv\u003e\n  \u003ch3\u003eOverview\u003c\/h3\u003e\n  \u003cp\u003eThe \u003cstrong\u003e800nm Chirped Mirror -275fs²\u003c\/strong\u003e (Ultrafast Innovations HD58) delivers mid-range negative group delay dispersion for Ti:Sapphire laser systems operating between 690–880 nm. With a GDD of -275 fs² per bounce at 785nm chirped mirror wavelength, this high-dispersion mirror enables efficient pulse compression and GDD compensation in chirped pulse amplification (CPA) systems and external compressor configurations.\u003c\/p\u003e\n  \u003cp\u003eThe -275 fs² GDD specification positions this mirror ideally for moderate-length beam paths in Ti:Sapphire amplifiers where 20–25 bounces can compensate 5,500–6,875 fs² of accumulated positive dispersion—eliminating the need for prism pairs while maintaining compact optical layouts. This GDD value bridges the gap between low-dispersion oscillator mirrors and ultra-high-dispersion compressor optics, providing versatile GVD control for multi-stage amplifier architectures.\u003c\/p\u003e\n  \n  \u003ch3\u003eApplications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTi:Sapphire CPA systems:\u003c\/strong\u003e Intracavity and post-amplifier dispersion compensation for 800nm regenerative and multipass amplifiers\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOPCPA pump line management:\u003c\/strong\u003e GDD pre-compensation for 785nm pump lasers driving optical parametric chirped pulse amplification stages\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eExternal pulse compressors:\u003c\/strong\u003e Compact folded compressor designs for sub-picosecond Ti:Sapphire oscillators requiring 4,000–8,000 fs² total GDD correction\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOPA pumping optimization:\u003c\/strong\u003e Temporal stretching and pulse shaping for 800nm pump beams in nonlinear frequency conversion systems\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eConstruction \u0026amp; Performance\u003c\/h3\u003e\n  \u003cp\u003eManufactured on 25.4 × 6.35 mm UVFS substrates with ion beam sputtering (IBS) dielectric coatings, this P-polarized chirped mirror achieves R\u0026gt;99.5% reflectance across the full 690–880 nm bandwidth at 7° angle of incidence (AOI). The broadband high-reflectivity coating maintains GDD specifications while minimizing losses in multi-bounce configurations. Sub-wavelength IBS layer precision ensures accurate dispersion control with minimal GDD ripple, critical for maintaining pulse fidelity in ultrafast laser systems. The 0.2 J\/cm² laser-induced damage threshold supports femtosecond pulse energies typical of laboratory-scale Ti:Sapphire amplifiers.\u003c\/p\u003e\n  \n  \u003ch3\u003eStorage \u0026amp; Handling\u003c\/h3\u003e\n  \u003cp\u003eOperate at 25 °C, 40–60% RH. Clean only with \u0026gt;99% optical-grade ethanol and lint-free lens tissue using single-pass drag method. Avoid abrasive cloths and water.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Ultrafast Innovations","offers":[{"title":"Default Title","offer_id":47948106498202,"sku":"HD58-25.4-6.35","price":854.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/800nm-chirped-mirror-render_94f7689c-2ab6-4809-b1d0-d3f1d388e3f9.png?v=1777648123","url":"https:\/\/waveqvanta.com\/products\/800nm-chirped-mirror-275fs","provider":"WaveQuanta","version":"1.0","type":"link"}