How to get product tags in Woo-commerce?

Get product tags in Woo-commerce.

$tags = get_terms( 'product_tag' );

$term_array = array();

if ( ! empty( $terms ) && ! is_wp_error( $terms ) ){

    foreach ( $terms as $term ) {

        $term_array[] = $term->name;

    }

}

echo '<pre>';

print_R($terms);

echo '</pre>';