摘要:
A physic package for an atomic clock comprising: a block made of optical glass, a glass ceramic material or another suitable material that includes a plurality of faces on its exterior and a plurality of angled borings that serve as a vacuum chamber cavity, light paths and measurement bores; mirrors fixedly attached using a vacuum tight seal to the exterior of the block at certain locations where two light paths intersect; optically clear windows fixedly attached using a vacuum tight seal to the block's exterior over openings of the measurement bores and at one location where two light paths intersect; and fill tubes fixedly attached using a vacuum tight seal to the exterior of the block over the ends of the vacuum chamber cavity. This physics package design makes possible atomic clocks having reduced size and power consumption and capable of maintaining an ultra-high vacuum without active pumping.
摘要:
A physic package for an atomic clock comprising: a block made of optical glass, a glass ceramic material or another suitable material that includes a plurality of faces on its exterior and a plurality of angled borings that serve as a vacuum chamber cavity, light paths and measurement bores; mirrors fixedly attached using a vacuum tight seal to the exterior of the block at certain locations where two light paths intersect; optically clear windows fixedly attached using a vacuum tight seal to the block's exterior over openings of the measurement bores and at one location where two light paths intersect; and fill tubes fixedly attached using a vacuum tight seal to the exterior of the block over the ends of the vacuum chamber cavity. This physics package design makes possible atomic clocks having reduced size and power consumption and capable of maintaining an ultra-high vacuum without active pumping.
摘要:
In one embodiment, a block for a physics package of an atomic sensor is provided. The block comprises one or more sections of optically transparent material defining a vacuum sealed chamber, and including a plurality of transmissive and reflective surfaces to define a plurality of light paths intersecting the vacuum sealed chamber. The one or more sections of optically transparent material include a first monolithic section defining at least a portion of the vacuum sealed chamber. The first monolithic section includes a first portion disposed across a first light path of the plurality of light paths such that light in the first light path is incident on the first portion of the first monolithic section.
摘要:
Embodiments of the present invention provide improved systems and methods for external frit mounted components on a sensor device. In one embodiment, a method for fabricating a sensor device comprises securing at least one component stack on a sensor body over at least one opening in the sensor body, wherein the at least one component stack comprises a plurality of components and applying a frit to the plurality of components in the at least one component stack and the sensor body. The method further comprises heating the frit, the at least one component stack, and the sensor body such that the frit melts and cooling the frit, the at least one component stack, and the sensor body such that the at least one component stack is secured to the sensor body.
摘要:
A laser stabilization system includes laser source having first and second ends; first waveguide portion having first and second ends, first end of first waveguide portion coupled to first end of laser source; second waveguide portion having first and second ends, first end of second waveguide portion coupled to second end of laser source; micro-cavity coupled between second end of first waveguide portion and second end of second waveguide portion, micro-cavity having resonant frequency; and electronic locking loop coupled between micro-cavity and laser source, wherein electronic locking loop electronically locks laser source to resonant frequency of micro-cavity; wherein first waveguide portion is optical locking loop coupled between micro-cavity and laser source, wherein optical locking loop optically locks laser source to resonant frequency of micro-cavity; micro-cavity stabilization loop coupled with micro-cavity, wherein micro-cavity stabilization loop stabilizes resonant frequency of micro-cavity to reference frequency; and output for outputting light from system.
摘要:
A spectroscopic assembly is provided. The spectroscopic assembly includes a thermal isolation platform, a gas reference cell encasing a gas and attached to the thermal isolation platform, the gas reference cell having at least one optically-transparent window, and at least one heater configured to raise a temperature of the encased gas. When a beamsplitter is configured to reflect a portion of an input optical beam emitted by a laser to be incident on the at least one optically-transparent window of the gas reference cell, the reflected portion of the input optical beam is twice transmitted through the gas. When a detector is configured to receive the optical beam twice transmitted through the gas, a feedback signal is provided to the laser to stabilize the laser.
摘要:
An optical component is provided. The optical component includes an optical-path portion including an arm-connecting portion and a lower portion, a first arm extending from a first end of the arm-connecting portion, and a second arm extending from a second end of the arm-connecting portion. The first arm has at least one resting feature and the second arm has at least one resting feature. The optical-path portion has an input surface. When the resting features of the first arm and the second arm are positioned on a top surface at short edges of a trench in a trench system, the optical-path portion is vertically aligned in the trench.
摘要:
An atomic clock having a physics package that includes a vacuum chamber cavity that holds atoms of Rb-87 under high vacuum conditions, an optical bench having a single laser light source, a local oscillator, a plurality of magnetic field coils, an antenna, at least one photo-detector and integrated control electronics. The single laser light source has a fold-retro-reflected design to create three retro-reflected optical beams that cross at 90° angles relative to one another in the vacuum chamber cavity. This design allows the single laser light source to make the required six trapping beams needed to trap and cool the atoms of Rb-87. The foregoing design makes possible atomic clocks having reduced size and power consumption and capable of maintaining an ultra-high vacuum without active pumping.
摘要:
A spectroscopic assembly is provided. The spectroscopic assembly includes a thermal isolation platform, a gas reference cell encasing a gas and attached to the thermal isolation platform, the gas reference cell having at least one optically-transparent window, and at least one heater configured to raise a temperature of the encased gas. When a beamsplitter is configured to reflect a portion of an input optical beam emitted by a laser to be incident on the at least one optically-transparent window of the gas reference cell, the reflected portion of the input optical beam is twice transmitted through the gas. When a detector is configured to receive the optical beam twice transmitted through the gas, a feedback signal is provided to the laser to stabilize the laser.
摘要:
Embodiments of the present invention provide improved systems and methods for providing an atomic sensor device. In one embodiment, the device comprises a sensor body, the sensor body enclosing an atomic sensor, wherein the sensor body contains a gas evacuation site located on the sensor body, the gas evacuation site configured to connect to a gas evacuation device. The device also comprises a getter container coupled to an opening in the sensor body, an opening in the getter container coupled to an opening in the sensor body, such that gas within the sensor body can freely enter the getter container. The device further comprises an evaporable getter enclosed within the getter container, the evaporable getter facing away from the sensor body.