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An agricultural vehicle with a sensor system is standing on a trailer in a field. It has large tires, a platform with a laptop and various technical components. A pickup truck can be seen in the background pulling the trailer. The sky is clear with some clouds.
The image shows a diode laser, known as a Master Oscillator Power Amplifier (MOPA), with a caliper as a size reference. The device consists of a gold-colored, rectangular metal block with precise holes, recesses, and, in the front right section, a diode laser that is electrically connected with wires. Additional components, such as lenses, are distributed across the block, which is surrounded by fine conductor paths and structures. A dark gray, round-shaped optical isolator is located in the middle of the device. The caliper scale in the background indicates the small dimensions of the device.