Applicable model*: AQ6380/AQ6370 series/AQ6360
Yokogawa's optical spectrum analyzer is equipped with a "0 nm sweep function" that repeatedly measures the optical power of a specific wavelength and displays the change over time. It is also effective for aligning the optical axis, such as coupling an optical fiber to the light source.
0 nm Sweep function
When the wavelength span setting of the optical spectrum analyzer is set to 0 nm, the spectroscopic element (diffraction grating) is fixed at the center wavelength position. If you perform measurement (sweep) in this state, the change over time in the optical power at the center wavelength can be observed. The horizontal axis of the screen is changed to time. (Usually, wavelength) Before executing the 0 nm sweep, set the center wavelength to the measuring wavelength and the wavelength resolution to the maximum resolution (2 nm). This is to avoid missing the optical power due to changes in wavelength over time. Since the measurement (sweep) time can be set arbitrarily in [0nm SWEEP TIME]**, slow power changes can be displayed on one screen.
0nm sweep setting [CENTER] Set to a measuring wavelength [SPAN] 0nm Horizontal axis is set to time [RES] 2nm Set to the wide resolution not to miss the signal due to the wavelength drift [SENS] Set to a suitable sensitivity according to the optical power Normal = fast / for high power [0nm SWEEP TIME] Set the sweep time for the full span of screen as appropriate. |
* All versions unless otherwise specified.
** The sweep time depends on the measurement sensitivity (SENS) setting.
Therefore, it may take longer than the time set in [0nm SWEEP TIME].
Waveguide alignment and optical axis adjustment in spatial light experiments
High Performance LONG WAVELENGTH
The AQ6375B is a bench-top optical spectrum analyzer covering the long wavelengths, 1200 to 2400 nm, with the added benefits of gas purging input ports / output ports, a built-in cut filter for high order diffracted light, and a novel double speed mode which increases the sweep speed up to 2 times compared to the standard sweep mode.
High Performance LONG WAVELENGTH
The AQ6375E covers not only telecommunication wavelengths, but also the SWIR region which is often used for environmental sensing and medical applications.
・Lineup of 3 models [Standard, Extended and Limited]
・Covers wavelengths
1200 to 2400 nm [Standard, and Limited]
1000 to 2500 nm [Extended ]
MWIR WAVELENGTH with internal gas purge and cut filter
The AQ6376 is the latest version of our bench-top optical spectrum analyzer extending the wavelength coverage well beyond the NIR range of our previous models into the MWIR region from 1500 to 3400 nm.
Popular applications include the detection of gases such as carbon oxides (COx), nitrogen oxides (NOx), and hydrocarbon gas (CxHy) for environmental studies.
MWIR WAVELENGTH with internal gas purge and cut filter
The AQ6376E is the latest version of our bench-top optical spectrum analyzer extending the wavelength coverage well beyond the NIR range of our previous models into the MWIR region from 1500 to 3400 nm.
Popular applications include the detection of gases such as carbon oxides (COx), nitrogen oxides (NOx), and hydrocarbon gas (CxHy) for environmental studies.
AQ6380 OSA: 5 pm high wavelength resolution, ±5 pm accuracy, 65 dB wide close-in dynamic range, 80 dB high stray light suppression