Hollow cathode glow discharge ring laser block and electrode structure for ring laser angular rate sensors
This patent describes a ring laser. It comprises: a gas impervious block containing at least three tunnels meeting to form, at least in part, a closed-loop gas containing cavity; electromagnetic wave reflecting surfaces for reflecting a pair of counter-propagating electromagnetic waves to propagate along the closed-loop cavity substantially defined by the tunnels; a gas contained within the closed-loop cavity; a first electrode; a second electrode; the first and second electrodes positioned relative to each other to support a discharge current through the gas and establish a glow discharge region therebetween to induce a pair of counter-propagating laser beams to propagate through the glow discharge region in a direction transverse to the direction of the discharge current.
- Assignee:
- Honeywell Inc., Minneapolis, MN
- Patent Number(s):
- US 4864586
- Application Number:
- PPN: US 7-133764A
- OSTI ID:
- 5109752
- Resource Relation:
- Patent File Date: 14 Dec 1987
- Country of Publication:
- United States
- Language:
- English
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