Piezoelectric frequency modulated optical maser

• US 3,330,957 A
• Filed: 09/19/1963
• Issued: 07/11/1967
• Est. Priority Date: 09/19/1963
• Status: Expired due to Term

• Current Assignee: Russell W. Runnels
• Original Assignee: Russell W. Runnels
• Inventors: Runnels, Russell W.
• Application Number:
  US04/310,179
• Time in Patent Office: 1,391 Days
• US Class Current: 372/28
• CPC Class Codes: H01S 3/105 by controlling the mutual position or the reflecting properties of the reflectors of the cavity , e.g. by controlling the cavity lengthH01S3/10076, H01S3/13 take precedence

Claims

1. A VARIABLE FREQUENCY OPTICAL MASER COMPRISING:

(A) A UNITARY SEMINCONDUCTIVE CRYSTAL BODY HAVING PIEZOELECTRIC PROPERTIES AND INCLUDING OPPOSING REFLECTIVE PARALLEL SURFACES ORIENTED NORMAL TO A LONGITUDINAL AXIS WHICH EXTENDS BETWEEN SAID SURFACES;

(B) SEMICONDUCTIVE LAYERED MEANS HAVING A TYPE CONDUCTIVITY OPPOSITE TO THE TYPE CONDUCTIVITY OF SAID CRYSTAL, SAID LAYERED MEANS EXTENDING OVER AN EXTERNAL SURFACE OF SAID CRYSTAL NORMAL TO SAID REFLECTIVE SURFACES AND IN A PLANE PARALLEL TO SAID AXIS, WHEREBY A P-N JUNCTION IS FORMED BETWEEN SAID LAYERED MEANS AND SAID CRYSTAL BODY;

(C) OHMIC CONTACT MEANS ELECTRICALLY COUPLED TO SAID LAYERED MEANS AND SAID CRYSTAL BODY FOR CONTROLLING THE LEVEL OF STIMULATED RADIATION EMITTING FROM SAID CRYSTAL BODY;

AND