Optical measurement arrangement

An optical measurement arrangement comprising:

• a light source for producing a light beam;
• a beam splitting device for splitting the light beam of the light source into a first split light beam and a second split light beam;
• an optics separation device for separating the first split light beam into one or more separated light beams;
• a detector array assembly having a plurality of detection elements for receiving one or more light beams of the first split light beam and the second split light beam to provide information regarding the detected light of the first and second split light beams;
• and
• a measuring device for measuring and assessing the information obtained in the detection element of the detector array assembly receiving the second split light beam and the information obtained in the detection elements of the detector array assembly receiving the one or more separated light beams of the first split light beam and for using the results of this measurement to adjust the light beam of the light source.

A method for optimizing the power correction to the light intensity used as a signal in an optical measurement arrangement, the steps comprising:

• a) providing a light source for producing a light beam;
• b) directing the light beam into a beam splitting device to produce a first split light beam and a second split light beam;
• c) directing the first split light beam through at least an interrogation area and an optics separation device for separating the first split light beam into one or more light beams;
• d) providing a detector array assembly having a plurality of detection elements for receiving the one or more light beams of the first split light beam and the second split light beam to provide information regarding the detected light of the first and second split light beams;
• e) directing the one or more light beams of the first split light beam and the second split light beam into one of the plurality of detection elements of the detector array assembly;
• f) measuring and assessing the information obtained in at least the detection elements of the detector array assembly which received the one or more light beams of the first split light beam and the information obtained in one of the plurality of detection elements of the detector array assembly which received the second split light beam;
• and
• g) using this information obtained in step f) to correct at least an intensity level of the first light beam being supplied to the interrogation area.

An optical measurement arrangement comprising:

• a light source for producing a light beam;
• a beam splitting device for splitting the light beam of the light source into a first split light beam and a second split light beam;
• an interrogation area for receiving the first split light beam,
• an optics separation device for separating the first split light beam into one or more separated light beams;
• a detector array assembly having a plurality of detection elements for receiving one or more light beams of the first split light beam and the second split light beam to provide information regarding the detected light of the first and second split light beams;
• and
• a measuring device for measuring and assessing the information obtained in the detection element of the detector array assembly receiving the second split light beam and the information obtained in the detection elements of the detector array assembly receiving the one or more separated light beams of the first split light beam and for using this information to correct at least an intensity level of the first light beam being supplied to the interrogation area.