Faculté des sciences

A miniature frequency-stabilized VCSEL system emitting at 795 nm based on LTCC modules

Gruet, Florian ; Vecchio, Fabrizio ; Affolderbach, Christoph ; Pétremand, Yves ; de Rooij, Nicolaas F ; Maeder, Thomas ; Mileti, Gaetano

In: Optics and Lasers in Engineering, 2013, vol. 51, no. 8, p. 1023–1027

We present a compact frequency-stabilized laser system locked to the Rubidium absorption line of a micro-fabricated reference cell. A printed circuit board (PCB) is used to carry all the components and part of the electronics, and low-temperature co-fired ceramic (LTCC) modules are used to temperature-stabilize the laser diode and the miniature Rubidium cell (cell inner dimensions: 5 mm diameter... Plus

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    Summary
    We present a compact frequency-stabilized laser system locked to the Rubidium absorption line of a micro-fabricated reference cell. A printed circuit board (PCB) is used to carry all the components and part of the electronics, and low-temperature co-fired ceramic (LTCC) modules are used to temperature-stabilize the laser diode and the miniature Rubidium cell (cell inner dimensions: 5 mm diameter and 2 mm height). The measured frequency stability of the laser, in terms of Allan deviation, is ≤8×10−10 for integration times of 103–105s. The current overall dimensions of the system are 70×40×50 mm3, with good potential for realization of a frequency-stabilized laser module with few cm3 volume.