New: USP Lasers Offer Higher Pulse Energy and Higher Repetition Rates

Coherent has significantly extended the performance of their Monaco series of industrial-grade femtosecond lasers by increasing their adjustable pulse repetition rate to a maximum of 50 MHz. Plus, the company has launched a new high energy Monaco that provides up to 60 µJ per pulse in the near infrared (1035 nm), or, optionally 30 µJ in the green (517 nm).

Monaco USP lasers offer higher pulse energy and higher repetition rates (Source: Coherent)

These improvements provide enhanced performance in precision materials processing applications, particularly for delicate and/or tough materials, and also deliver increased frame rates in demanding multiphoton microscopy imaging applications. All Monaco lasers produce a high quality (M2 < 1.2) beam, enabling tight focusing for high brightness and high spatial resolution. Additionally, the pulsewidth can be user set from under 400 fs to over 10 ps.

In bio-imaging applications, these high repetition rate lasers enable higher frame rates than competitive products, particularly for power hungry applications such as photoactivation in optogenetic experiments. Here, the near-IR output can be used directly for two-photon excitation of red fluorophores such as mFruits. Or it can also be used to pump the Opera-F, a variable pulsewidth optical parameter amplifier (OPA) that then provides smoothly tunable output across the entire microscopy imaging spectral window.

The improved Monaco 1035-40 provides 40 watts of average power in the near-IR (1035 nm), with the user selecting pulse repetition rates of 1, 2, 3, 4, 5, 10, and 50 MHz from a simple pull-down menu in the laser GUI, with no effect on output pulsewidth. The Monaco 517-20 provides 20 watts of green output with the same operational and output specifications. The all-new infrared Monaco 1035-60 and green Monaco 517-30 provide an additional operating point at 670 kHz for users requiring very high pulse energy: 60 µJ in the near-IR, and 30 µJ in the green. These lasers are ideal for cutting thicker substrates and drilling deep holes in ceramics, glass, and materials used for bio-absorbable stents. The short pulsewidth ensures excellent edge and surface quality without the need for post-processing steps in most applications. (Source: Coherent)

Link: Monaco Series, Coherent Inc., Santa Clara, Cal., USA

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